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3 years ago

The outer and inner diameters of a circular ring are

Mathematics

1 answer:

ra1l [238]3 years ago

5 0

Answer:

103.686cm^2

Step-by-step explanation:

Given data

Outer diameter= 34cm

Outer Radius= 34/2= 17cm

Area= πr^2

Area of outer ring= 3.142*17^2

Area of outer ring= 3.142*289

Area of outer ring= 908.038cm^2

inner diameter= 32cm

inner Radius= 32/2= 16cm

Area= πr^2

Area of outer ring= 3.142*16^2

Area of outer ring= 3.142*256

Area of outer ring= 804.352cm^2

Hence the radius of the ring is

=Area of outer - Area of inner

=908.038-804.352

=103.686cm^2

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3 years ago

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3 years ago

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Lapatulllka [165]

Answer:

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Step-by-step explanation:

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