Question

HELPPP PLS I DON’T UNDERSTAND

Answer 1

Answer:

A=1/2bh

2*A=1/2bh*2

2A/b=bh/b

h=2A/b

b)h=2(220)/20

height=22mm

Explanation:

Answer 2

a.

`h=(2A)/(b)`

b.

A = 220 mm²

b = 20 mm

`h=(2 \cdot 220)/(20)=22 \: {mm}`