Let’s solve each problem one by one. We’ll use the correct area formulas for each shape and plug in the given numbers.
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1) Circle with radius 6 cm
Area of a circle = π × r²
r = 6 → Area = π × 6² = π × 36 ≈ 3.14 × 36 =
113.04 cm²
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2) Square with side 12 m
Area of square = side × side = 12 × 12 =
144 m²
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3) Rectangle with length 14 in, width 6 in
Area = length × width = 14 × 6 =
84 in²
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4) Rectangle with length 7 yd, width 3 yd
Area = 7 × 3 =
21 yd²
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5) Circle with radius 4 ft
Area = π × 4² = π × 16 ≈ 3.14 × 16 =
50.24 ft²
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6) Triangle with base 8 cm, height 8 cm
Area = (base × height) ÷ 2 = (8 × 8) ÷ 2 = 64 ÷ 2 =
32 cm²
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7) Right triangle with base 5 yd, height 9 yd
Area = (5 × 9) ÷ 2 = 45 ÷ 2 =
22.5 yd²
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8) Rectangle with length 10 in, width 2 in
Area = 10 × 2 =
20 in²
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9) Square with side 9 m
Area = 9 × 9 =
81 m²
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10) Rectangle with length 9 ft, width 7 ft
Area = 9 × 7 =
63 ft²
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11) Circle with radius 10 m
Area = π × 10² = π × 100 ≈ 3.14 × 100 =
314 m²
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12) Triangle with base 15 cm, height 6 cm
Area = (15 × 6) ÷ 2 = 90 ÷ 2 =
45 cm²
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Final Answer:
1) 113.04 cm²
2) 144 m²
3) 84 in²
4) 21 yd²
5) 50.24 ft²
6) 32 cm²
7) 22.5 yd²
8) 20 in²
9) 81 m²
10) 63 ft²
11) 314 m²
12) 45 cm²
Parent Tip: Review the logic above to help your child master the concept of geometry maths worksheet.
