Mathematics, 25.01.2020 19:31 alvarezmrs1913

Find (a) the area and (b) the circumference of each circle using π=3.14. round to the hundredths' place. 1. the diameter of the circle is 9.5cm. 2. the radius of the circle is 4cm.

Find (a) the area and (b) the circumference of each circle using π=3.14. round to the hundredths' pl

Answers

Answer from: kaffolter25

area = pi x r^2

circumference = 2x pi x r or pi x d

1st one diameter = 9.5 cm

so radius = 9.5/2 = 4.75

area = 3.14 x 4.75^2 = 70.85 square cm

circumference = 3.14 x 9.5 = 29.83 cm

2nd one radius = 4

area = 3.14 x 4^2 = 50.25 square cm

circumference = 2 x 3.14 x 4 = 25.12 cm

Answer from: Quest

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Answer from: Quest

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Find (a) the area and (b) the circumference of each circle using π=3.14. round to the hundredths' pl...