Pleas help I have strict parents
1)The radius of a circle is 4.6 in. Find the circumference to the nearest tenth
2)the diameter of a circle is 9ft. Find its area to the nearest tenth.
3) THE area of a circle is 49 pi cm square. What is the circumference in centimeters? Express your answer in terms of pi
BY the way I need a buddy for help I’m
Stupid

1. 29 in

2. 64 ft

3. 44 cm

I will try to help with any other questions you have :)

Given:

The circumference of the smaller is 30% of the circumference of the larger circle.

We need to determine the circumference of the larger circle.

Diameter of the larger circle:

The diameter of the smaller circle is 9 in.

Since, the circumference of the smaller is 30% of the circumference of the larger circle, we have;

where S is the circumference of the smaller circle and L is the circumference of the larger circule.

Thus, the diameter of the larger circle is 30 inches.

Circumference of the larger circle:

The circumference of the larger circle is given by

Thus, the circumference of the larger circle is 94.2 inches.