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Elementary Geometry for College St...

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

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BuyFindarrow_forward

Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
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In Exercises 23 to 28, use arithmetic or algebra, as needed, to

find the measures indicated. Note the use of dashes on equal

sides of the given isosceles triangles.

Find m 1 and m 2 if m 3 = 68 ° .

Chapter 3.3, Problem 23E, In Exercises 23 to 28, use arithmetic or algebra, as needed, to find the measures indicated. Note

To determine

To find:

The measure of m1 and m2.

Explanation

Given:

The given figure is,

Figure (1)

And,

m3=68°.

Approach:

(1) An isosceles triangle has two equal sides and two equal angles corresponding to the angles.

(2) The measure of sum of angles of a triangle is equal to 180°.

Calculation:

From figure (1),

m2=m3m2=68°

Equate the sum of angles of a triangle to 180°.

m1+m2+m3=180°(1)

Substitute 68°<

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