Answer:
b
Step-by-step explanation:
i dont really know how to explain my proccess clearly to you, but i got it right on one of my quizes
The answer to that is 439
Answer:
4.3cm
Step-by-step explanation:
the radius of the hemisphere can be determined its volume
volume of a hemisphere = (2/3) x (n) x (r^3)
n = 22/7
r = radius
(2/3) x (22/7) x( r^3) = 165 cm^3
44/21 x r^3 = 165
divide both sides of the equation by 21/44
165 x 21/44
r^3 = 78.75
find the cube root
r = 4.2863 cm
the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero
the 100th terms, 8 is greater than 6, so add 1 to 2. this give 4.3cm
Answer:

Step-by-step explanation:
Given
-- radius

Required
Determine the area of the sector
This is calculated as:

Substitute values for r and 

Simplify 90/360


Take
as 3.14

