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dmead22284
31.08.2020 •
Mathematics
What is the trigonometric ratio for cosD? Enter your answer, as a simplified fraction, in the boxes. triangle DEF with right angle E. DE equals 21. DF equals 75. EF equals 72.
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Ответ:
Area of sector is 17.584 meters
Solution:
Given that we have to find the approximate area of a sector given O= 56 degrees with a diameter of 12m
Diameter = 12 m
Radius = Diameter / 2 = 6 m
An angle of 56 degrees is the fraction
of the whole rotation
A sector of a circle with a sector angle of 56 degrees is therefore also the fraction
of the circle
The area of the sector will therefore also be
of the area
Thus area of sector is 17.584 meters