HOTS Mathematics Primary 6 Circles

Square ABCD has a side of 14 cm. A circle is drawn with AB as its diameter. Find the area of the region inside the square but outside the circle. (Take π = 22/7)

A 42 cm²
B 174 cm²
C 152 cm²
D 21 cm²
Show Worked Solution

Worked Solution

Step 1: Find the radius. Diameter = AB = 14 cm → radius = 14 ÷ 2 = 7 cm Step 2: Find the area of the circle. Area = π × r² = 22/7 × 7 × 7 = 22/7 × 49 = 22 × 7 = 154 cm² Step 3: Find the area of the square. Area = 14 × 14 = 196 cm² Step 4: Find the shaded area. Shaded = 196 − 154 = 42 cm²

Correct answer: 42 cm²

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