Find the volume of the ball if its radius is three point one-seventh which is equal
Find the volume of the ball if its radius is three point one-seventh which is equal to the radius of the ball if its volume is 33 11/21 m3 99/448 m3.
Let’s write down the formula for finding the volume of the ball:
V = 4/3 * 3.14 * P ^ 3; where P is the radius of the ball;
1) Find the volume of the ball at P = 3 1/7 m:
V = 4/3 * 3.14 * (3 1/7) ^ 3 = 4/3 * 3.14 * (22/7) ^ 3 = 4/3 * 3.14 * 10648/343 = 130 m ^ 3;
Answer: the volume of the ball is 130 m ^ 3.
2) Find the radius of a sphere with a volume of V = 33 11/21 m ^ 3.
33 11/21 = 4/3 * 3.14 * P ^ 3;
704/21 = 4/3 * 3.14 * P ^ 3;
P ^ 3 = 704/21 * 3/4: 3.14 = 8;
P = 2 m;
3) Find the radius of a sphere with a volume of V = 99/448 m ^ 3.
99/448 = 4/3 * 3.14 * P ^ 3;
P ^ 3 = 99/448 * 3/4: 3.14 = 0.05;
P = 0.05 ^ (1/3) m.