Complementary angles add up to 90 degrees.
The complement of 57 is (90 - 57) = 33 degrees.
Answer: 13, 14
Step-by-step explanation:
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It the measure of central angle ABC is π/2 radians ( 90° ) then the shaded sector represents 1/4 of the area of the circle.
Area of the circle:
A = r² π = 6² π = 36 π
A ( ABC ) = 36π : 4 = 6 π
Answer:
6 π units².
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Answer:
The width is 7 meters and the length is 13 meters
Step-by-step explanation:
The perimeter of a rectangle sandpit is 40 meters.
Let the width be w units, then the length which is 1 meter less than twice it’s width becomes: 
The perimeter of a rectangle is given by:

We substitute P=40 and the length in term of w to get:

We simplify to get:

Divide through by 2 to get:
Hence 