What is approximate area of the circle 7cm?
49π cm2
Find the area of a circle whose radius is 7 cm, giving your answer in terms of π. Find the area of a circle whose diameter is 7 cm, using the approximate π ≈ . π ≈ 3.14. = 49π cm2….
| The area of the large semicircle | = × π × 32 = |
|---|---|
| The area of a small semicircle | = × π × |
| = cm2 | |
| = − 2 × | |
| = cm2 |
How do you find the approximate area of a circle?
The area of a circle, A, is π r2, where r is the radius of the circle. If you are given the radius of a circle, you can find its area.
What is the circumference of 7cm?
∴ , the circumference is approximately 43.98 cm .
What is the diameter of the circle 7cm?
Hint: We will put the value of radius r=7cm in the formula of area of circle that is πr2 and the circumference in the very same way πd . And here d is diameter which is equal to 2r.
What is the area of a 5m circle?
Area = 5cm x 5 cm x 3.14 = 25 cm x 3.14 = 78.5 square cm. Answer. 78.5 square cm.
How do you find the approximate circumference of a circle?
To find the circumference, multiply π times the diameter (C = π · d). Try again. You may have multiplied the diameter by the radius. To find the circumference, multiply π times the diameter (C = π · d).
What circumference is 7cm?
What is the area of a circle with a diameter of 7cm?
What is the area of a circle with a diameter of 7 cm? and r denotes the radius. The radius of the circle is half the diameter = d 2 = 7 2 = 3.5cm The area = πr2 ≈ 3.14× (3.5)2
How do you find 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.
How to find the diameter of a circle using a calculator?
You can find diameter of a circle by multiplying the radius of a circle by two: Diameter = 2 * Radius Area of a circle radius. The radius of a circle calculator uses the following area of a circle formula:
What is the radius of 7 in cm2?
A circle of radius = 7 or diameter = 14 or circumference = 43.98 cm has an area of: 1.539 × 10 -8 square kilometers (km²) 0.01539 square meters (m²) 153.9 square centimeters (cm²)