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3 years ago

Can someone help me with this 20 points

Mathematics

2 answers:

Novay_Z [31]3 years ago

5 0

Answer:

9cm

8 cm

Step-by-step explanation:

The diameter is 2 times the radius

d = 2r

d = 2(4.5)

d = 9 cm

The diameter is 16cm

d = 2r

16 = 2r

Divide each side by 2

16/2 = 2r/2

8 =r

The radius is 8 cm

Nostrana [21]3 years ago

4 0

1st : to find the diameter just multiply the radius of the circle by 2

<em>2nd: divide the diameter by 2 for the circle so the radius of the circle is 8</em>

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