unknown6669
03.01.2020 •
Mathematics
Arectangle has a perimeter of 60 units and one side of length 18 units. if it can be determined, what are the lengths, in units, of the other three sides?
a. 18,3,3
b. 18,12,12
c. 18,18,6
d. 18,21,21
e. cannot be determined from the information given
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Ответ:
Step-by-step explanation:
Perimeter of a plane shape is the distance around the shape. The formula for determining the perimeter of a rectangle expressed as
Perimeter = 2(length + width)
The rectangle has for side. Two parallel and opposite sides are equal. There, if the length of one side of the rectangle is 18 units, it means that the length of the opposite side is also 18 units.
Since the perimeter of the rectangle is 60 units, it means that
2(18 + W) = 60
18 + W = 60/2 = 30
W = 30 - 18 = 12
Therefore, the lengths, in units, of the other three sides are 18 , 12 and 12 units
Ответ:
So you are going to do pi x 6^2 x 12 = 1357.168026350791 then divide 1357.168026350791 by pi and you get C. 432 pi in.^2
Also here is a link to a calculator that can really help with problems like this.
https://www.eeweb.com/tools/calculator
Hope this Helps!!