# Unit 4 homework 3 Gina Wilson pls help w homework!

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## Question:

Unit 4 homework 3 Gina Wilson pls help w homework!

Angles in a triangle may or may not be congruent.

1. Triangle STU

Triangle STU is an isosceles triangle.

So:

This gives

— sum of angles in a triangle

Substitute

Subtract 54 from both sides

and

2. Triangle LMN

Triangle LMN is an isosceles triangle.

— sum of angles in a triangle

Substitute

Subtract 28 from both sides

and

3. Triangle EFG

— sum of angles in a triangle

Subtract 46 from both sides

The triangle is an isosceles triangle

and

4. Triangle PQR

The triangle is an equilateral triangle

Question 5

The triangle is an isosceles triangle.

Collect like terms

Divide both sides by 6

Hence, the value of x is 4

Question 6

Divide both sides by 18

Hence, the value of x is 7

Question 7

Divide both sides by 3

Hence, the value of x is 16

Question 8

The triangle is an equilateral triangle.

Subtract 8 from both sides

Divide both sides by 4

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Hence, the value of x is 13