   Chapter 5.CR, Problem 19CR 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

Given: Δ A B C   ~ Δ D E F (not shown) ∠ A = 50 ∘ , ∠ E = 33 ∘ ∠ D = 2 x + 40 Find: x , ∠ F

To determine

To find:

x and F.

Explanation

Given:

ΔABC similar to ΔDEF

A=50,mE=33,mD=2x+40

Calculation:

Since, ΔABC similar to ΔDEF

Then,

mA=mD50=2x+402x=50402x=10x=102x=5

To find, mR, consider the ΔDEF

mD+mE+mF=1802x+40+33+

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