Question

4) x=_____
5) x=_____
6) x=_____

Answer 1

Explanation:

The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angle:

4)

x = 21 + 34

x = 55

5)

100 = 51 + 2x + 3

• Add like terms

100 = 2x + 54

• Subtract 54 from both sides

46 = 2x

• Divide both sides by 2

23 = x

6)

94 = 60 + 2x

• Subtract 60 from both sides

34 = 2x

• Divide both sides by 2

17 = x