Review Orion

Question 1

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

Answer 1

C = πd

Question 2

If the diameter of a circular garden is 14 meters, what is its circumference?

Answer 2

C ≈ 43.96 meters

Question 3

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

Answer 3

A = πr²

Question 4

If a pizza has a radius of 8 inches, what is its area?

Answer 4

A ≈ 200.96 square inches

Question 5

If the diameter of a circular pool is 20 meters, what is the circumference?

Answer 5

C ≈ 62.8 meters

Question 6

If the diameter of a circular pool is 20 meters, what is the area?

Answer 6

A ≈ 314 square meters

Question 7

What is the ratio of boys to girls if there are 18 girls and the ratio is 2:3?

Answer 7

12 boys

Question 8

How do you calculate speed in miles per hour?

Answer 8

Speed = Distance / Time

Question 9

If a car travels 150 miles in 3 hours, what is its speed?

Answer 9

50 mph

Question 10

What is the sale price of a $50 item with a 20% discount?

Answer 10

$40

Question 11

What is the common denominator for 1/4 and 2/3?

Answer 11

12

Question 12

What is the result of adding 1/4 and 2/3?

Answer 12

11/12

Question 13

What is the result of multiplying 3/5 and 2/7?

Answer 13

6/35

Question 14

What is the result of dividing 1/2 by 3/4?

Answer 14

2/3

Question 15

If a recipe calls for 2/3 cup of flour and you want to make half the recipe, how much flour do you need?

Answer 15

1/3 cup