Question

Can someone help please and thank you.

Answer 1

5)

Equilateral triangle, all sides are equal

So 2x + 5 = 11

2x = 6

x = 3

Answer is the first one

3; Equilateral theorem

6)

Isosceles triangle has at least two congruent sides.

So 6x = 24

x = 4

Answer x = 4

Converse of the Base Angle Theorem

7)

5x + 7 = 52

5x = 45

 x = 9

Answer

x = 9

Base angle theorem

8)

5y - 14 = 3y

2y = 14

 y = 7

Answer

7; Equiangular theorem