Question

Use the diagram to answer 7-10

7. Find the value of y.
8. Find m2AEC
9. Find mLBED
10. Find m2AEB
(3y+20) (5y-16)
E

Answer 1

3y +20 = 5y-16

36= 2y

y =18

mLAEC = 3×18 +20 = 74

mLBED = 5×18-16 = 74

MLAEB = 180-74= 106