Mensuration of 2D Shapes for Competitive Exam Success

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Mensuration of 2D Shapes

Q. What is the area of a parallelogram with a base of 10 cm and a height of 5 cm?

A. 50 cm²
B. 30 cm²
C. 40 cm²
D. 20 cm²

Solution

Area = base × height = 10 cm × 5 cm = 50 cm².

Correct Answer: A — 50 cm²

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Q. What is the area of a parallelogram with a base of 12 cm and a height of 5 cm?

A. 60 cm²
B. 50 cm²
C. 70 cm²
D. 40 cm²

Solution

Area = base × height = 12 cm × 5 cm = 60 cm².

Correct Answer: A — 60 cm²

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Q. What is the area of a parallelogram with a base of 8 cm and a height of 3 cm?

A. 24 cm²
B. 30 cm²
C. 20 cm²
D. 18 cm²

Solution

Area = base × height = 8 cm × 3 cm = 24 cm².

Correct Answer: A — 24 cm²

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Q. What is the area of a rectangle with length 8 cm and width 5 cm?

A. 40 cm²
B. 30 cm²
C. 50 cm²
D. 20 cm²

Solution

Area = length × width = 8 cm × 5 cm = 40 cm².

Correct Answer: A — 40 cm²

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Q. What is the area of a rhombus with diagonals of 8 cm and 6 cm?

A. 24 cm²
B. 30 cm²
C. 36 cm²
D. 48 cm²

Solution

Area = (d1 × d2) / 2 = (8 cm × 6 cm) / 2 = 24 cm².

Correct Answer: A — 24 cm²

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Q. What is the area of a square with a side length of 4 cm?

A. 8 cm²
B. 12 cm²
C. 16 cm²
D. 20 cm²

Solution

Area = side² = 4 cm × 4 cm = 16 cm².

Correct Answer: C — 16 cm²

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Q. What is the area of a trapezoid with bases of 8 cm and 5 cm, and a height of 4 cm?

A. 26 cm²
B. 30 cm²
C. 20 cm²
D. 24 cm²

Solution

Area = 1/2 × (base1 + base2) × height = 1/2 × (8 cm + 5 cm) × 4 cm = 26 cm².

Correct Answer: A — 26 cm²

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Q. What is the area of a triangle with a base of 10 cm and a height of 6 cm?

A. 30 cm²
B. 60 cm²
C. 20 cm²
D. 40 cm²

Solution

Area = 1/2 × base × height = 1/2 × 10 cm × 6 cm = 30 cm².

Correct Answer: A — 30 cm²

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Q. What is the perimeter of a rectangle with length 12 cm and width 5 cm?

A. 34 cm
B. 30 cm
C. 24 cm
D. 40 cm

Solution

Perimeter = 2(length + width) = 2(12 cm + 5 cm) = 34 cm.

Correct Answer: A — 34 cm

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