Question

the circumference of a circle is 440 cm. find its radius and diameter

Answer 1

hope it will help uuuu

Answer 2

Answer:

Diameter = 140cm

Radius = 70cm

Step-by-step explanation:

Given:

Circumference = 440cm

To find:

Radius and diameter

Solution:

The length of a circle's perimeter is known as its circumference. The length of the boundary, if the circle is split open and made straight, will equal the circle's circumference.

A circle is made up of several points that are evenly spaced out from one another; this single point is referred to as the circle's centre.

The radius of a circle is the separation between the centre and any point along its circumference. The radius is always the same size. It stays the same.

The greatest separation possible between any two locations on the circumference is known as a circle's diameter. Its radius is double that.

Radius = C/2π, thus

By substituing the values,

=$\frac{440\times 7}{2\times 22}$

=$\frac{3080}{44}$

Now diameter,

$=2\times radius$

$=2\times 70\\=140cm$

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