Answer:
C = 131.88 cm
Step-by-step explanation:
the circumference (C) of a circle is calculated as
C = 2πr ( r is the radius ) , then
C = 2 × 3.14 × 21 = 131.88 cm
Area of the whole figure = 0.5m^2 ( half * base * heighT)
Area if the circle = pi r^2 = pi k^2
So area of shaded part = 0.5m^2 - k^2 pi
What type of angles are there
The answer is: 9There are 9 kinds of non-congruent isosceles triangles that can be formed <span>by connecting three of the dots in a 4 x 4 square array of dots</span>
The attached figure represents the explanation of the answer.
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Answer:
the answer to this is "21"