Grade 7 Week 11 Retention (focus on word problems)

Front

What is the total income of Jane and Bob if Jane makes $274 and Bob makes $321?

Back

$595

Front

What is the definition of the circumference of a circle?

Back

The circumference of a circle is the distance around it.

Front

If Louie owes the bank $12 and receives $15 for Christmas, how much money will he have left after paying the bank?

Back

$3

Front

What is the diameter of a circle?

Back

The diameter is the distance across the circle through its center.

Front

What is the area of a circle?

Back

The space INSIDE the circle.

Front

If a circle has a radius of 5 cm, what is its diameter?

Back

10 cm (Diameter = 2 x Radius).

Front

What is the formula for calculating the circumference of a circle?

Back

Circumference = 2 x π x Radius.

Front

If a circle has a circumference of 31.4 cm, what is its radius?

Back

5 cm (Radius = Circumference / (2 x π)).

Front

What is the formula for calculating the area of a circle?

Back

Area = π x Radius².

Front

If the radius of a circle is 3 cm, what is its area?

Back

Approximately 28.27 cm² (Area = π x 3²).