BuyFindarrow_forward

Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

Solutions

Chapter
Section
BuyFindarrow_forward

Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
1 views

Prove that if two lines (neither horizontal nor vertical) are perpendicular, then the product of their slopes is - 1 .

(HINT: See Figure 10.19. You need to show and use the fact that A B C ~ E D C .)

To determine

To prove:

If two lines (neither horizontal nor vertical) are perpendicular, then the product of their slopes is -1.

Explanation

Consider the two perpendicular lines l1 and l2 which is neither vertical nor horizontal.

At the point of intersection C, draw a vertical CB and horizontal line CD.

From B, draw a horizontal line BA towards line l1, thus it makes the triangle ABC.

From D, draw a vertical line DE towards line l2, thus it makes the triangle CDE.

The C makes a right angle. Thus it is equal in both the triangle.

Also B and D makes a right angle because of the perpendicular bisector.

In ∆ABC and ∆CDE,

Two angles are same, obviously third angle is also equal.

A=E

By AAA similarity,

Corresponding sides of the triangle are proportional.

Thus, BCCD=ABDE

By interchanging the above ratio,

BCAB=CDDE

In this, we have to prove that the slopes are equal

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 10 Solutions

Show all chapter solutions add
Sect-10.1 P-11ESect-10.1 P-12ESect-10.1 P-13ESect-10.1 P-14ESect-10.1 P-15ESect-10.1 P-16ESect-10.1 P-17ESect-10.1 P-18ESect-10.1 P-19ESect-10.1 P-20ESect-10.1 P-21ESect-10.1 P-22ESect-10.1 P-23ESect-10.1 P-24ESect-10.1 P-25ESect-10.1 P-26ESect-10.1 P-27ESect-10.1 P-28ESect-10.1 P-29ESect-10.1 P-30ESect-10.1 P-31ESect-10.1 P-32ESect-10.1 P-33ESect-10.1 P-34ESect-10.1 P-35ESect-10.1 P-36ESect-10.1 P-37ESect-10.1 P-38ESect-10.1 P-39ESect-10.1 P-40ESect-10.1 P-41ESect-10.1 P-42ESect-10.1 P-43ESect-10.1 P-44ESect-10.1 P-45ESect-10.1 P-46ESect-10.1 P-47ESect-10.1 P-48ESect-10.1 P-49ESect-10.2 P-1ESect-10.2 P-2ESect-10.2 P-3ESect-10.2 P-4ESect-10.2 P-5ESect-10.2 P-6ESect-10.2 P-7ESect-10.2 P-8ESect-10.2 P-9ESect-10.2 P-10ESect-10.2 P-11ESect-10.2 P-12ESect-10.2 P-13ESect-10.2 P-14ESect-10.2 P-15ESect-10.2 P-16ESect-10.2 P-17ESect-10.2 P-18ESect-10.2 P-19ESect-10.2 P-20ESect-10.2 P-21ESect-10.2 P-22ESect-10.2 P-23ESect-10.2 P-24ESect-10.2 P-25ESect-10.2 P-26ESect-10.2 P-27ESect-10.2 P-28ESect-10.2 P-29ESect-10.2 P-30ESect-10.2 P-31ESect-10.2 P-32ESect-10.2 P-33ESect-10.2 P-34ESect-10.2 P-35ESect-10.2 P-36ESect-10.2 P-37ESect-10.2 P-38ESect-10.2 P-39ESect-10.2 P-40ESect-10.2 P-41ESect-10.2 P-42ESect-10.2 P-43ESect-10.2 P-44ESect-10.2 P-45ESect-10.2 P-46ESect-10.3 P-1ESect-10.3 P-2ESect-10.3 P-3ESect-10.3 P-4ESect-10.3 P-5ESect-10.3 P-6ESect-10.3 P-7ESect-10.3 P-8ESect-10.3 P-9ESect-10.3 P-10ESect-10.3 P-11ESect-10.3 P-12ESect-10.3 P-13ESect-10.3 P-14ESect-10.3 P-15ESect-10.3 P-16ESect-10.3 P-17ESect-10.3 P-18ESect-10.3 P-19ESect-10.3 P-20ESect-10.3 P-21ESect-10.3 P-22ESect-10.3 P-23ESect-10.3 P-24ESect-10.3 P-25ESect-10.3 P-26ESect-10.3 P-27ESect-10.3 P-28ESect-10.3 P-29ESect-10.3 P-30ESect-10.3 P-31ESect-10.3 P-32ESect-10.3 P-33ESect-10.3 P-34ESect-10.3 P-35ESect-10.3 P-36ESect-10.3 P-37ESect-10.4 P-1ESect-10.4 P-2ESect-10.4 P-3ESect-10.4 P-4ESect-10.4 P-5ESect-10.4 P-6ESect-10.4 P-7ESect-10.4 P-8ESect-10.4 P-9ESect-10.4 P-10ESect-10.4 P-11ESect-10.4 P-12ESect-10.4 P-13ESect-10.4 P-14ESect-10.4 P-15ESect-10.4 P-16ESect-10.4 P-17ESect-10.4 P-18ESect-10.4 P-19ESect-10.4 P-20ESect-10.4 P-21ESect-10.4 P-22ESect-10.4 P-23ESect-10.4 P-24ESect-10.4 P-25ESect-10.4 P-27ESect-10.4 P-28ESect-10.4 P-29ESect-10.4 P-30ESect-10.5 P-1ESect-10.5 P-2ESect-10.5 P-3ESect-10.5 P-4ESect-10.5 P-5ESect-10.5 P-6ESect-10.5 P-7ESect-10.5 P-8ESect-10.5 P-9ESect-10.5 P-10ESect-10.5 P-11ESect-10.5 P-12ESect-10.5 P-13ESect-10.5 P-14ESect-10.5 P-15ESect-10.5 P-16ESect-10.5 P-17ESect-10.5 P-18ESect-10.5 P-19ESect-10.5 P-20ESect-10.5 P-21ESect-10.5 P-22ESect-10.5 P-23ESect-10.5 P-24ESect-10.5 P-25ESect-10.5 P-26ESect-10.5 P-27ESect-10.5 P-28ESect-10.5 P-29ESect-10.5 P-30ESect-10.5 P-31ESect-10.5 P-32ESect-10.5 P-33ESect-10.5 P-34ESect-10.5 P-35ESect-10.5 P-36ESect-10.5 P-37ESect-10.5 P-38ESect-10.5 P-39ESect-10.5 P-40ESect-10.5 P-41ESect-10.5 P-42ESect-10.5 P-43ESect-10.5 P-44ESect-10.5 P-45ESect-10.5 P-46ESect-10.5 P-47ESect-10.5 P-48ESect-10.5 P-49ESect-10.6 P-1ESect-10.6 P-2ESect-10.6 P-3ESect-10.6 P-4ESect-10.6 P-5ESect-10.6 P-6ESect-10.6 P-7ESect-10.6 P-8ESect-10.6 P-9ESect-10.6 P-10ESect-10.6 P-11ESect-10.6 P-12ESect-10.6 P-13ESect-10.6 P-14ESect-10.6 P-15ESect-10.6 P-16ESect-10.6 P-17ESect-10.6 P-18ESect-10.6 P-19ESect-10.6 P-20ESect-10.6 P-21ESect-10.6 P-22ESect-10.6 P-23ESect-10.6 P-24ESect-10.6 P-25ESect-10.6 P-26ESect-10.6 P-27ESect-10.6 P-28ESect-10.6 P-29ESect-10.6 P-30ESect-10.6 P-31ESect-10.6 P-32ESect-10.6 P-33ESect-10.6 P-34ESect-10.6 P-35ESect-10.6 P-36ESect-10.6 P-37ESect-10.6 P-38ESect-10.6 P-39ESect-10.6 P-40ESect-10.6 P-41ESect-10.6 P-43ESect-10.6 P-44ESect-10.6 P-45ESect-10.6 P-46ESect-10.6 P-49ESect-10.6 P-50ESect-10.CR P-1CRSect-10.CR P-2CRSect-10.CR P-3CRSect-10.CR P-4CRSect-10.CR P-5CRSect-10.CR P-6CRSect-10.CR P-7CRSect-10.CR P-8CRSect-10.CR P-9CRSect-10.CR P-10CRSect-10.CR P-11CRSect-10.CR P-12CRSect-10.CR P-13CRSect-10.CR P-14CRSect-10.CR P-15CRSect-10.CR P-16CRSect-10.CR P-17CRSect-10.CR P-18CRSect-10.CR P-19CRSect-10.CR P-20CRSect-10.CR P-21CRSect-10.CR P-22CRSect-10.CR P-23CRSect-10.CR P-24CRSect-10.CR P-25CRSect-10.CR P-26CRSect-10.CR P-27CRSect-10.CR P-28CRSect-10.CR P-29CRSect-10.CR P-30CRSect-10.CR P-31CRSect-10.CR P-32CRSect-10.CR P-33CRSect-10.CR P-34CRSect-10.CR P-35CRSect-10.CR P-36CRSect-10.CR P-37CRSect-10.CR P-38CRSect-10.CR P-39CRSect-10.CR P-40CRSect-10.CT P-1CTSect-10.CT P-2CTSect-10.CT P-3CTSect-10.CT P-4CTSect-10.CT P-5CTSect-10.CT P-6CTSect-10.CT P-7CTSect-10.CT P-8CTSect-10.CT P-9CTSect-10.CT P-10CTSect-10.CT P-11CTSect-10.CT P-12CTSect-10.CT P-13CTSect-10.CT P-14CTSect-10.CT P-15CTSect-10.CT P-16CTSect-10.CT P-17CTSect-10.CT P-18CTSect-10.CT P-19CTSect-10.CT P-20CTSect-10.CT P-21CTSect-10.CT P-22CT

Additional Math Solutions

Find more solutions based on key concepts

Show solutions add

Distance Find the distance between the given numbers. 73.

Precalculus: Mathematics for Calculus (Standalone Book)

In Exercises 107-120, factor each expression completely. 111. 10 14x 12x2

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

Simplify the expressions in Exercises 97106. x3/2x5/2

Finite Mathematics and Applied Calculus (MindTap Course List)

Change 24 ft to yards.

Elementary Technical Mathematics

Multiply the following numbers and verify your answers. 42610

Contemporary Mathematics for Business & Consumers

True or False: If , then converge absolutely.

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th

True or False: (x + y)y″ + (x − 10)y′ + xy + 10 = 0 is homogeneous.

Study Guide for Stewart's Multivariable Calculus, 8th

Describe the advantages and disadvantages of convenience sampling.

Research Methods for the Behavioral Sciences (MindTap Course List)