Question

Trisha measured the button on her coat. Then she calculated that it has an area of 50.24 square millimeters. What is the button's circumference? Use 3.14 for ​. *

Answer 1

Answer: 25.12 milimeters

Explanation:

Hi, to answer this question, first, we have to calculate the button's radius:

Area of a circle= π radius^2

Replacing with the values given:

50.24 = 3.14 r^2

50.24 / 3.14 = r^2

16 = r^2

√16 =r

r= 4 mm

Now, to find the circumference

Circumference = 2πr

Replacing:

C = 2 (3.14) 4 = 25.12 milimeters

Feel free to ask for more if needed or if you did not understand something.