Question

Pls solve it pls pls pls​

Answer 1

x/y = 3/12 = 12/a = 5/b = c/8

So,

3/12= 12/a

3*a = 12*12(cross multiplication)

3a = 144

So a= 48.

Answer 2

Answer:

7_x - 7

y_6,9

8_x-4

y_12,6