Area of Circles & Sectors HW

Front

What is the formula for the area of a circle?

Back

Front

How do you calculate the area of a sector of a circle?

Back

Front

What is the value of π (pi) approximately?

Back

The value of π (pi) is approximately 3.14.

Front

If the radius of a circle is doubled, how does the area change?

Back

If the radius is doubled, the area increases by a factor of four, since area is proportional to the square of the radius.

Front

What is the area of a circle with a radius of 5 m?

Back

Front

How do you convert the area from square meters to square feet?

Back

To convert from square meters to square feet, multiply by 10.764 (1 m² = 10.764 ft²).

Front

What is the area of a circle with a diameter of 10 cm?

Back

Front

What is the area of a sector with a radius of 4 inches and a central angle of 90°?

Back

Front

How do you find the area of a shaded region between two circles?

Back

Front

What is the area of a circle with a radius of 7 cm?

Back