Foundation Mathematics Primary 6 Circles

Find the area of the quarter circle shown. The radius is 14 cm. (Take pi = 22/7)

A 22 cm2
B 154 cm2
C 308 cm2
D 616 cm2
Show Worked Solution

Worked Solution

Step 1: Recall the formula for the area of a quarter circle. Area = 1/4 x pi x r x r Step 2: Substitute the values. Area = 1/4 x (22/7) x 14 x 14 = 1/4 x (22/7) x 196 Step 3: Simplify by cancelling first. 196 divided by 7 = 28 22 x 28 = 616 1/4 x 616 = 154 cm2 The area of the quarter circle is 154 cm2. Answer: 154 cm2

Correct answer: 154 cm2

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