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primary 6 | Maths | Geometry
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Vijay Ramanathan
Vijay Ramanathan

primary 6 chevron_right Maths chevron_right Geometry

Hard

Date Posted: 1 year ago
Views: 50

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Lils
Lils's answer
3 answers (A Helpful Person)
1st
Part b is area of large circle + area of 2 semicircles - area of triangles. So..

8÷2=4
4×4×3.14=50.24 (area of large circle)
Area of triangle (as shown above) =32cm2
4÷2=2
2×2×3.14×2=25.12 (area of 2 semicircles)
25.12+50.24=75.36
75.36-32=43.36
Ans: 43.36 cm2