Question

me ajudem nessa questao 48.

Answer 1

A)

AB / BD  = AC / BC

8 / x  = 16 / 14

x = 14.8 / 16

x = 112/16

x = 7

B) 

x / 2   = 8 /x

x² = 8 . 2

x² = 16

x= √16

x = 4