(e) Determine whether the area ofa circle is sometimes, always ornever

1.	(e) Determine whether the area ofa circle is sometimes, always ornever doubled when the radiusis doubled. Explain.K-10 cm
Answer» Let the radius of the circle is =r Then the area of the circle = πr2 Now double radius = 2r Then the new area = π (2r)2 = π × 4 ×r2 = 4 (πr2) If the radius of the sphere is double then the area will become four times.

(e) Determine whether the area ofa circle is sometimes, always ornever doubled when the radiusis doubled. Explain.K-10 cm

Answer»

Let the radius of the circle is =r

Then the area of the circle = πr2

Now double radius = 2r

Then the new area = π (2r)2

= π × 4 ×r2

= 4 (πr2)

If the radius of the sphere is double then the area will become four times.