Answer:
The radius of the sphere is 7m
Step-by-step explanation:
Given
Volume of a sphere = 1372π/3 m³
Required
The radius.
The volume of a sphere is calculated using the following formula.
V = 4/3 πr³
Where V = volume of the sphere and r represents it's radius.
By substitution;
1372π/3 = 4/3 πr³
Multiply both sides by 3
1372π = 4πr³
Divide through by 4
343π = πr³
Divide through by π
343 = r³
Take cube root of both sides.
r = 7.
Hence, the radius of the sphere is 7m
Answer:
I do not know what is congruent here, but if it is the sides that are congruent then that statement is true, but if the angles are equal then that statement is false.
Answer:
90.24 divided by 6.3
Step-by-step explanation:
For reaching to the answer, we have to test each of the options given
The first option says that the divisor and dividend is 90.24 and dividend is 6.3
Now if we rounded it
So it would be 90 and 6
So, the quotient is
= 90 ÷ 6
= 15
Hence, the first option is correct
i.e. 90.24 divided by 6.3
And, all the other options are wrong
Answer:
There is not enough info
Step-by-step explanation:
Answer:
Step-by-step explanation:
Face perimeter is
7.5 + 4(1.5) + 3(2.5) = 21 ft
Perimeter wall area
21(1.5) = 31.5 ft²
Face area (x2 for front and back)
2(7.5(1.5) + 2.5(1.5)) = 30 ft²
Total surface area
31.5 + 30 = 61.5 ft²