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musickatia [10]
2 years ago
9

A circle is dilated by a scale factor of 1.5 to create a new circle. The area of the new circle is 1.5 times the area of the ori

ginal circle.
True or false??
Mathematics
1 answer:
Anvisha [2.4K]2 years ago
6 0

Given:

The given statement is "A circle is dilated by a scale factor of 1.5 to create a new circle. The area of the new circle is 1.5 times the area of the original circle."

To find:

Whether the given statement in true or false.

Solution:

Area of circle is

A=\pi r^2

Where, <em>r</em> is the radius of the circle.

Let r_1 be the radius of the original circle. So, the area of the circle is

A_1=\pi (r_1)^2

The circle is dilated by a scale factor of 1.5 to create a new circle. So, the radius of the new circle is:

r_2=1.5r_1

The area of the new circle is

A_2=\pi (r_2)^2

A_2=\pi (1.5r_1)^2

A_2=2.25\pi (r_1)^2

A_2=2.25A_1

The area of the new circle is 2.25 times the area of the original circle.

Therefore, the given statement is false.

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