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3 years ago

GET NAMED BRAINLIEST AND ANSWER THE RIGHT ANSWER AND GET A THANKS AND GET 30 POINTS

Mathematics

1 answer:

Inessa [10]3 years ago

3 0

Answer:

#i. π = 10/d

#ii. C/30=π

Step-by-step explanation:

#a. We are given;

The circumference of a circle as 10 cm

We are required to show how the relationship between the circumference and the diameter can be used to find π.

we know that the circumference of a circle is given by;

Circumference = πd

But, circumference is 10 cm

Therefore;

10 cm = πd

Dividing both sides by d, then;

π = 10/d

#b. we are given;

We are given;

Radius of a circle = 15

We are supposed to express the ratio of circumference to the diameter;

We need to know that;

Diameter = 2 × radius

= 2r

Circumference = πd or

= 2πr

Therefore, the ratio of circumference to the diameter will be;

C=2πr

d=2r

C/d = π

But d =30

Thus; C/30 =π

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