Arrange the areas of following shapes in descending order of their values: A. A sphere of diameter 0.35…
The areas in square metres are sphere π(0.35)²≈0.385, cylinder 2π(0.2)(1)≈1.257, square 2.4²=5.76, and annulus π(3.5²−2.5²)=6π≈18.85. Descending order is D–C–B–A.
Choose your answer
Arrange the areas of following shapes in descending order of their values:
A. A sphere of diameter 0.35 m
B. Curved surface of a cylinder of length 1.0 m and radius 0.2 m
C. A square of side 2.4 m
D. A circular strip of inner radius 2.5 m and outer radius 3.5 m
Answer and explanation
Correct answer C
The areas in square metres are sphere π(0.35)²≈0.385, cylinder 2π(0.2)(1)≈1.257, square 2.4²=5.76, and annulus π(3.5²−2.5²)=6π≈18.85. Descending order is D–C–B–A.
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