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primary 5 | Maths | Area & Volume
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primary 5 Maths Area & Volume Singapore

Pls help and pls reply asap thanks

Date Posted: 5 years ago

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Hi, the total perimeter was given so length of AB= total perimeter - length of BC - length of CD - length of DE - length of EA

Date Posted: 5 years ago

Esther

5 years ago

and for part b, area of ABCD = area of triangle ABE + area of rectangle BCDE

area of triangle ABE = 1/2 x 40 x 30

area of BCDE = 30 x 20