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Mensuration — Chapter Test

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Q1
Area of a trapezium = ½ × (sum of parallel sides) × ___ ?
Trapezium area = ½ × (sum of parallel sides) × height.
Q2
Area of a rhombus = ½ × d₁ × ___ ?
Rhombus area = ½ × d₁ × d₂.
Q3
1 cm³ equals ___ ?
1 cm³ = 1 mL.
Q4
The surface area of a cube is ___ ?
A cube has 6 square faces, so 6a².
Q5
A trapezium has parallel sides 6 and 10 and height 4. Its area is ___ ?
½ × 16 × 4 = 32 sq cm.
Q6
A rhombus has diagonals 6 and 8. Its area is ___ ?
½ × 6 × 8 = 24 sq cm.
Q7
What is the surface area of a cube of side 3 cm?
6 × 9 = 54 sq cm.
Q8
What is the surface area of a cuboid 2 × 3 × 4?
2(6 + 12 + 8) = 52 sq cm.
Q9
What is the volume of a cube of side 5 cm?
5³ = 125 cm³.
Q10
What is the volume of a cuboid 5 × 4 × 3?
5 × 4 × 3 = 60 cm³.
Q11
A cylindrical tank has radius 7 m and height 10 m. Its volume is (π = 22/7) ___ ?
(22/7) × 49 × 10 = 1540 m³.
Q12
3000 cm³ of water equals how many litres?
3000 ÷ 1000 = 3 L.
Q13
What is the volume of a cylinder with radius 7 cm and height 5 cm (π = 22/7)?
(22/7) × 49 × 5 = 770 cm³.
Q14
What is the surface area of a cube of side 10 cm?
6 × 100 = 600 sq cm.
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