PSLE Math 2023 Paper 2 Question 12
(Circles Perimeter and Area Question)
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PSLE Math 2023 Paper 2 Question 12
Diameter = 7cm x 2 = 14cm
a) Perimeter of shaded part = circumference of 3 circles
= (227 x 14cm) x 3
= 132cm
b) Using the cut-and-paste:
Area of shaded part = (14cm x 14cm) x2
= 392cm^2 + 154cm^2
= 546cm^2
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