Area or Circumference Flashcardizz

Front

What is the term for the distance around a circle?

Back

Circumference

Front

What is the term for the amount of space inside a circle?

Back

Area

Front

If a circle has a radius of 3 cm, what is its circumference? (Use the formula C = 2πr)

Back

C = 2π(3) = 6π cm

Front

If a circle has a radius of 4 cm, what is its area? (Use the formula A = πr²)

Back

A = π(4)² = 16π cm²

Front

What do you need to calculate the area of a circle?

Back

You need the radius or diameter of the circle.

Front

What do you need to calculate the circumference of a circle?

Back

You need the radius or diameter of the circle.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr or C = πd (where d is the diameter).

Front

What is the formula for the area of a circle?

Back

A = πr².

Front

If a circular garden has a diameter of 10 m, what is its circumference?

Back

C = πd = π(10) = 10π m.

Front

If a circular table has a radius of 5 m, what is its area?

Back

A = π(5)² = 25π m².