SOLUTION: 1. The area of a circle is 28 sq meters. What is the circumference?
2. A cylinder drum has a diameter of 3 yards and a volume of 65 cubic yards. What is height of drum?
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Question 334899: 1. The area of a circle is 28 sq meters. What is the circumference?
2. A cylinder drum has a diameter of 3 yards and a volume of 65 cubic yards. What is height of drum?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
1. The area of a circle is 28 sq meters. What is the circumference?
Find r from the area:
= 28
r =
;
Find the circumference
C =
Replace r with
C =
enter into a calc
C = 18.758 m
:
:
2. A cylinder drum has a diameter of 3 yards and a volume of 65 cubic yards.
What is height of drum
Vol of a cylinder
= V
Find the radius: r = 3/2 = 1.5 yds
= 65
= 65
h =
using a calc
h = 9.1956 yds is the height
:
;
Check by finding the vol with this height
V =
V = 65.00
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