Mathematics: WORKSHEET-2 7. The natio of the cincumference of the diameter is2. The distance around a circular region is known as it s3. Find the area and circumference of circle whose radius is 35 cmСло=2= 22CincumferenceAREA

WORKSHEET-2 7. The natio of the cincumference

Ответ:

med69

17.03.2022

Mathematics

1. $\frac{C}{D}$ = 3.143

2. Circumference

3. Area of the circle is 3850 $cm^{2}$ .

ii. Circumference of the circle is 220 cm.

Step-by-step explanation:

The area, A, and the circumference, c, of a circle can be determined respectively by:

A = $\pi$ $r^{2}$

C = 2 $\pi$ r

where r is the radius of the circle.

1. the ratio of the circumference and diameter, D, of a circle is:

r = $\frac{D}{2}$

so that,

C = 2 $\pi$ $\frac{D}{2}$

C = $\pi$ D

$\frac{C}{D}$ = $\pi$

= $\frac{22}{7}$

= 3.143

2. The distance around a circular region is known as it's circumference.

3. Given a circle of radius 35 cm, then:

A = $\pi$ $r^{2}$

= $\frac{22}{7}$ x $(35)^{2}$

= $\frac{22}{7}$ x 1225

= 22 x 175

A = 3850

Area of the circle is 3850 $cm^{2}$ .

C = 2 $\pi$ r

= 2 x $\frac{22}{7}$ x 35

= 2 x 22 x 5

= 220

C = 220 cm

Circumference of the circle is 220 cm.

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WORKSHEET-2 7. The natio of the cincumference of the diameter is
2. The distance around a circular region is known as it's
3. Find the area and circumference of circle whose radius is 35 cm
Сло
=2
= 22
Cincumference
AREA

Ответ:

Ответ:

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WORKSHEET-2 7. The natio of the cincumference of the diameter is2. The distance around a circular region is known as it's3. Find the area and circumference of circle whose radius is 35 cmСло=2= 22CincumferenceAREA

Ответ:

Ответ:

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WORKSHEET-2 7. The natio of the cincumference of the diameter is
2. The distance around a circular region is known as it's
3. Find the area and circumference of circle whose radius is 35 cm
Сло
=2
= 22
Cincumference
AREA