Lils's answer to Vijay Ramanathan's Primary 6 Maths Geometry question.
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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
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
Date Posted:
6 years ago
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