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2 years ago

How to do this question plz

Mathematics

2 answers:

bixtya [17]2 years ago

7 0

252mmSquared

Step-by-step explanation:

28+28=56

74-56=18

18÷2=9

9×28=252

galina1969 [7]2 years ago

6 0

Answer:

A=252

Step-by-step 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

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