Question

Question 7 (2 points)

In the figure below, AABC and AADF are congruent equilateral triangles. Determine the values of x and y-
X =
B
2x+9
D
y=
A
C
6⁰
5x-12
F

Answer 1

2x + 9 = 5x - 12

2x - 5x = - 1- 9

- 3x = - 21

x = 21/3

x = 7

Y = 60°