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Calculate the area and circumference of a circle with diameter 8cm

2 Answers

4 votes

Answer:

8 cm

Explanation:

you do circumference with diamer

User Basim
by
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2 votes

Answer:

Explanation:

The diameter of a circle is twice the radius. Therefore, if the diameter is 8cm, the radius is 8cm/2 = 4cm.

The area of a circle is given by the formula A = πr^2, where π is the mathematical constant pi, and r is the radius of the circle. Substituting the value of r=4cm, we get:

A = π(4cm)^2 = 16π cm^2

Therefore, the area of the circle is 16π cm^2.

The circumference of a circle is given by the formula C = 2πr. Substituting the value of r=4cm, we get:

C = 2π(4cm) = 8π cm

Therefore, the circumference of the circle is 8π cm.

User Anurag Dhadse
by
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