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Find the central angle using a ratio in regards to angle and circumference.
The radius is 27 units, so use the following equation to calculate circumference:
C = 2rπ
Therefore:
C = 2(27)π = 54π
Since we have the total circumference, we can write the following proportion:

Cross multiply:
54πx = 6480π
Divide both sides by 54π to isolate for x:
x = 120°
Answer:
side of the mosaic = 7 inches
Step-by-step explanation:
Diego has 49 square inch tiles. He wants to use to make a square mosaic.
Area of the tile = 49 square inches
We know , area of the square = s^2
where 's' is the side of the square

Plug in 49 for area and solve for 's'

Take square root on both sides
s= 7
side of the square = 7 inches
Answer:
25
Step-by-step explanation:
Answer:
its 12.5
Step-by-step explanation:
Answer: see attachments
<u>Step-by-step explanation:</u>