Question

Please help me!

A giant water lily pad is shaped like a circle with a diameter of up to 9 feet. Find the circumference and area of the pad. Use 3.14 for π. Round to the nearest tenth. Drag and drop the numbers into the boxes to show the circumference and area of the pad.

(fill in the blanks)

The circumference of the lily pad is about [ ] ft.

The area of the lily pad is about [ ] ft^2.

(options for both: 14.1, 63.6, 254.3, 28.3)

Answer 1

Circumference of the lily pad is about 28.3 ft

Area of the lily pad is about 63.6 ft²

Explanation:

Formula for circumference of circle is,

Circumference = 2 π r

Given that diameter is 9 ft. Therefore radius is half of diameter.

`r=(d)/(2)`

Substituting the values,

`r=(9)/(2)=4.5`

Also value of π = 3.14

Substituting the value,

C = 2 × 3.14 × 4.5

Simplifying,

C = 28.26 ft

Rounding to nearest tenth value of circumference is C = 28.3 ft.

Formula for area of circle is,

A = π r²

Substituting the values,

A = 3.14 × 4.5²

Simplifying,

A = 63.585 ft².

Rounding to nearest tenth value of area is A = 63.6 ft².