Answer:
979.68 in^3
Explanation:
Here is the complete question
In his garden jim is using cone shape planters for his happing plants has a diameter of of 8 inches and a height of 13 inches he has 6 planters and wants to fill each plamter 3/4of the way with soil what is the total volume of soil jim will need for his hanging plants
total volume of soil needed = 3/4 x volume of the 6 planter
volume of the 6 planters = volume of a planter x 6
volume of a planter = volume of a cone
Volume of a cone = 1/3(nr^2h)
n = 22/7
r = radius = 8/2 = 4
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
A radius is half of the diameter
h = height
1/3 x 4^2 x 13 x 3.14 = 217.71
6 planters = 217.71 x 6 = 1306.24
3/4 x 1306.24 = 979.68 in^3