Question

ABCD =Persegi panjang. Hitunglah nilai a, b, x, y!

Answer 1

A/20 =18/12
a = 18/12 x 20 = 30
.
b/40 = 18/30
b = 18/30 x 40 = 24
.
x/6 = 20/12
x = 20/12 (6)= 12
.
18/b = 24/ y
18/24 = 24/y
y = 24(24)/18) = 32