HOTS Mathematics Primary 6 Circles

A square has a side of 14 cm. A circle is drawn inside the square so that it touches all four sides. Find the area of the shaded region between the square and the circle. (Use π = 22/7)

A 42 cm²
B 154 cm²
C 152 cm²
D 350 cm²
Show Worked Solution

Worked Solution

Step 1: Find the area of the square. Area = 14 × 14 = 196 cm² Step 2: Find the radius of the inscribed circle. The circle touches all four sides, so diameter = side = 14 cm → radius = 7 cm Step 3: Find the area of the circle. Area = π × r² = (22/7) × 7 × 7 = (22/7) × 49 = 22 × 7 = 154 cm² Step 4: Find the shaded region. Shaded area = 196 − 154 = 42 cm²

Correct answer: 42 cm²

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