Ques 18: Find the volume of
concrete used to construct the
two cylindrical pillars each of
diameter 2.8 m and height 7m. *
Answers
Answered by
1
Answer:
86.24 meter cube
Step-by-step explanation:
given - height of cylinder = 7m. Diameter of the cylinder = 2.8m : radius of the cylinder = 1.4m. Volume of the cylinder = π r square h = 22÷7×1.4×1.4×7 = 43 .12 meter cube. Volume of 1 pillar = 43.12 . Therefore volume of two pillar = 43.12+43.12= 86.24 meter cube.
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