Question

please help me guys plz give answer for this step by step..pls​

Answer 1

let the upper frame be A
let the right frame be B
the area of upper frame and lower frame would be same
the area of right and left frame would be same
A's height =(28-20)/2 (as the total is 28 and 20 is already covered... moreover there are 2 frame sections in the remaining length)
= 4cm
A's area =
$1 \div 2 \times sum of parallel \: sides \: \times height$
=
$\frac{1}{2} \times (16 + 24) \times 4$
=
$80 \: {cm}^{2}$
height of B = (24-16)/2
= 4cm
area of B =
$\frac{1}{2} \times (sum \: of \: parallel \: sides) \times height$
=
$\frac{1}{2} \times (20 + 28) \times 4$
=
$96 {cm}^{2}$
please mark it as the brainliest