   Chapter 11.1, Problem 35E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

For Exercises 35 to 38, make drawings as needed.In parallelogram ABCD, AB=6ft and AD=10ft. If m ∠ A = 65 ° and B E - is the altitude to A D - , finda) BE correct to tenths.b) the area of ▱ A B C D .

To determine

To find:

a. The length of BE.

Explanation

In a right angle triangle,

1) The side PQ, which is opposite to the right angle PRQ is called the hypotenuse.

(The hypotenuse is the longest side of the right triangle.)

2) The side RQ is called the adjacent side of angle θ.

3) The side PR is called the opposite side of angle θ.

Hence, the sine ratio for an acute angle is oppositehypotenuse

Given:

In parallelogram ABCD,

AB = 6 ft, AD = 10 ft, A=65° and BE is the altitude of the parallelogram.

Let a be the altitude of the parallelogram i.e., BE which is the opposite side

To determine

To find:

b. The area of a parallelogram ABCD

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