Table of Contents
What is the area of the diameter is 20cm?
Hence, Circumference and Area of Circle are 62.8 cm and 314 cm².
What is the PI of 20cm?
Taking pi =3.14 find it’s circumference and it’s area.
What is the area of semi circle whose diameter is 20 cm?
A semicircle whose diameter is 20 cm will have area of 157 cm
How do you get the area of a circle with a diameter?
The formula for the area A as a function of the diameter d of a circle is given by A = π (d/2)^2.
What is the radius of a circle that is 20cm?
Diameter = 20cm . Radius = 10 cm.
What is the radius of 20 cm circle?
r=10π cm.
How do you find the area of a circle with a diameter of 20?
1 Answer
- ∙A=πr2←r is the radius.
- here diameter =20⇒r=202=10 in.
- ⇒A=π×102=100π≈314.2.
What is the formula for a semi circle?
The circumference of a circle is C = πd or C = 2πr, Using the value of C we can determine the formula for the perimeter of a semicircle which is calculated as the sum of half of the circumference of the circle and diameter of a circle. The perimeter of a semicircle formula = (πR + d) or (πR + 2R) units, or R(π + 2).
How big is a 20 centimeter circle in area?
How big is a 20 centimeter circle? Area of a Circle Formula The area of a circle is pi times the square of its radius. The radius is half the diameter.
How to calculate the area of a circle?
The area of a circle is pi times the square of its radius. The radius is half the diameter. The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.
Which is the cut off part of a circle?
>A sector of a circle is section of a circle between two radii. You can think of it as a giant slice of pizza. >It’s a “cut-off” part of a circle, limited by a chord or a secant. >It’s an angle with the vertex in the center, whose arms extend to the circumference.