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primary 6 | Maths | Measurement
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KaE
KaE

primary 6 chevron_right Maths chevron_right Measurement chevron_right Singapore

Hi can someone help me please. Thank you.

Date Posted: 4 years ago
Views: 295
snell
Snell
4 years ago
not enuh info, but to assume the following:

by observation,
short side of footpath is 7x50
= 350 cm long

long side of footpath is 11x50
= 550 cm long

(a)
area of footpath
= 550 x 100 + 250 x 100
= 80 000 cm²
= 8 m²

area of 36 tiles
= π x 0.5 x 0.5 / 4 x 36
= 2.25π
= 7.065 m²

area not covered by tiles
= 8-7.065
= 0.935 m²


(b)
length of grass patch
= 550-100
= 450 cm or 4.5 m

breadth of grass patch
= 350-100
= 250 cm or 2.5 m


perimeter
= (4.5+2.5) x 2
= 14 m


...

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Ben01
Ben01's answer
16 answers (A Helpful Person)
1st
Area = 19350cm^2
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Ben01
Ben01's answer
16 answers (A Helpful Person)
Perimeter =1600cm