4)
The formula for the area of a circle is A = ttr where A is the area and r is the radius.
Estimate the area of a circle where it = 3.142 and r = 8.6 cm.

The area of the circle = 27.0212cm^2

Step-by-step explanation:

The area for a circle is

A = πr^2

But weve been given the area of the circle in the information provided above

Area of a circle is given as

A = ttr

Where,

A - area of circle

r = radius of the circle

We've been the values of r and tt

r = 8.6cm

tt = 3.142

Inserting the values given into

A = ttr

A = 3.142 * 8.6

A = 27.0212cm^2

The area of the circle is 27.0212cm^2

the 3rd on is correct

step-by-step explanation:

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )