Question

Help! Find the answers and explain the work | max points!

Answer 1

1) r = 20.2/2

= 10.1 mm

circumference = ( (1/2) (2) (π) (10.2) )

= 32.04 mm

perimeter = (3.1 + 3.1 + 20.2 + ( (1/2) (2) (π) (10.2) )

= 58.13 mm

2) circumference = (1/4) (2) (π) (307.34)

= 482.77 mm

perimeter = (11.5 + 11.5 + (2 * 10.1) + ( (1/4) (2) (π) (307.34) )

= 525.97 mm

3) circumference = (3/4) (2) (π) (2.5)

= 11.78 cm

4) circumference = (3/4) (2) (π) (2.5)

= 23.56 cm

5) circumference = (1/2) (2) (π) (32)

= 100.53 cm

6) r = 6/2 = 3 cm

circumference = (1/2) (2) (π) (3)

= 9.42 cm

perimeter = (2 + 2 + 6 + ( (1/2) (2) (π) (3) )

= 19.42 cm

I hope my answer helps you.