Question

How to do this question plz ​

Answer 1

A=252

Explanation:

B=28mm

P=74mm

we know the two sides of B= 28

28+28= 56

the perimeter is every added up P= 74

so we must minus 56-74 = 18

meaning side A= 18 then we divide it by 2 which is 9

to check... 9+ 28+9+28 = 74 same answer if 18+56= 74

Formula for Area = Lxw meaning 9x28

9x28 = 252

Answer 2

252mmSquared

Explanation:

28+28=56

74-56=18

18÷2=9

9×28=252