Priya drew a circle whose circumference is 25 cm. clare drew a circle whose diameter is 3 times the diameter or priya’s circle. what is the circumference of clare’s circle?

75 cm

Step-by-step explanation:

We know that the circumference of a circle is given by :-

, where d= diameter.

Given : Priya drew a circle whose circumference is 25 cm.

Substitute Circumference= 25 in the formula , we get

If Clare draw a circle whose diameter is 3 times the diameter or Priya’s circle.

Then, the diameter of  Clare's circle =

Now , the circumference of Clare’s circle :

Hence, the circumference of Clare’s circle = 75 cm

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6