Question

the difference between square of two radias of circle is 16 if the radias of first circle 1 less than the twice of the radias of second circle then find the radias of both circle

Answer 1

Answer:

Explanation:

The circumference of a circle is equal to  

π

, which is a number  

≈

3.14

, multiplied by the diameter of the circle.

Therefore,  

C

=

π

d

.

We know that the circumference,  

C

, is  

16

π

, so we can say that:

16

π

=

π

d

We can divide both sides by  

π

to see that  

16

=

d

.

We now know that the diameter of the circle is  

16

.

We also know that the diameter has twice the length of the radius.

In equation form:  

2

r

=

d

2

r

=

16

r

=

8

Note that since  

2

r

=

d

, the equation  

C

=

2

π

r

holds and can be used in place of  

C

=

π

d

.

Step-by-step explanation: