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Interactive Grade 8 Maths Area & Volume Test

Maths · Grade 8 · 15 questions · 10 min

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Area & Volume
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1.
Surface area of rectangular prism: 10×7×3 cm
(SA = 2(lw+lh+wh))
2.
Area of TRAPEZOID: parallel sides 19 and 25 cm, height 12 cm
(A = ½(a+b)h)
3.
Surface area of SPHERE: r=5 cm (SA=4πr², π≈3.14)
4.
Circumference of CIRCLE: r = 5 cm (C=2πr, π≈3.14)
5.
Area of CIRCLE: r = 5 cm (π ≈ 3.14)
6.
r=6h=3
Volume of CYLINDER: r = 6 cm, h = 3 cm (V=πr²h, π≈3.14)
7.
Volume of CONE: r=7 cm, h=14 cm
(V = ⅓πr²h, π≈3.14)
8.
r=8h=6
Total surface area of a cylinder (r=8): top + bottom + curved = ___
(2πr² + 2πrh, use h=6, π≈3.14)
9.
Volume of SPHERE: r=7 cm
(V = 4/3 × π × r³, π≈3.14)
10.
r=2h=11
Curved surface area of CYLINDER: r=2 cm, h=11 cm (CSA=2πrh, π≈3.14)
11.
Circumference of CIRCLE: r = 3 cm (C=2πr, π≈3.14)
12.
Area of TRAPEZOID: parallel sides 8 and 18 cm, height 4 cm
(A = ½(a+b)h)
13.
Surface area of rectangular prism: 12×6×2 cm
(SA = 2(lw+lh+wh))
14.
Area of CIRCLE: r = 10 cm (π ≈ 3.14)
15.
Volume of CONE: r=7 cm, h=10 cm
(V = ⅓πr²h, π≈3.14)