Find the volume of a right circular cone that has a height of 9.2ft and a base with a circumference of 7.6ft. Round your answer to the nearest tenth of a cubic foot.Answer: ft3
Q. Find the volume of a right circular cone that has a height of 9.2ft and a base with a circumference of 7.6ft. Round your answer to the nearest tenth of a cubic foot.Answer: ft3
Find Radius of Base: First, we need to find the radius of the base of the cone. The formula for the circumference C of a circle is C=2πr, where r is the radius. We can rearrange this formula to solve for r: r=2πC.Given that the circumference is 7.6 feet, we can calculate the radius as follows:r=2π7.6 ft
Calculate Radius: Now, let's calculate the radius using the value of π as approximately 3.14159.r=(2×3.14159)7.6 ft r≈6.283187.6 ft r≈1.21 ft We will round to two decimal places for intermediate calculations to maintain accuracy.
Calculate Volume: Next, we use the formula for the volume V of a cone, which is V=31πr2h, where r is the radius and h is the height of the cone.We have r≈1.21 ft and h=9.2 ft. Plugging these values into the formula gives us:V=31π(1.21ft)2(9.2ft)
Volume Calculation: Now we calculate the volume:V≈(31)×3.14159×(1.21ft)2×9.2ftV≈(31)×3.14159×1.4641ft2×9.2ftV≈0.46453×3.14159×13.4692ft3V≈19.625ft3
Round Volume: Finally, we round the volume to the nearest tenth of a cubic foot as requested. V≈19.6ft3
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