In the figure, ABCDE is a pentagon with BE||CD and BCIDE. BC is perpendicular to
CD. AB= 5cm, AE=5cm, BE= 7cm, BC= x-y and CD= x+y. If the perimeter of ABCDE is
27cm. find the value of x and y. given x, y 0.

BC=DE= x-y

AB+BC+CD+DE=5+x-y+x+y+x-y=27 cm

5+3x-y=27 cm

3x-y=22

if x=9 , then 3*9-y=22,  27-y=22, y=27-22, y=5

Step-by-step explanation:

the answer is c)8

step-by-step explanaction:

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation: