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primary 5 | Maths | Area & Volume
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Nancy
Nancy

primary 5 chevron_right Maths chevron_right Area & Volume chevron_right Singapore

Pls help and pls reply asap thanks

Date Posted: 4 years ago
Views: 389

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Esther
Esther's answer
1 answers (A Helpful Person)
1st
Hi, the total perimeter was given so length of AB= total perimeter - length of BC - length of CD - length of DE - length of EA
Esther
Esther
4 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