Area of a circle, rectangle, and triangle

What is the radius of this circle?

• 12
• 6
• 24

What is the area of this circle?

• 1384.74

• 2142.12

• 5541.77

• 1289.12

What is the area of this circle?

• 1256.64

• 31.41

• 314

• 123.12

What is the area of this circle?

• 201.06

• 50.24

• 123.12

• 94.43

What is/are the formula(s) to find the area of a circle?

• πr²
• 2πr
• √π

What does area mean?

• the distance around a shape
• half the distance around a shape
• the amount of space outside a shape
• the amount of space inside a shape

What is the area of the rectangle?

• 42 square cm
• 40 square cm
• 40 cm
• 42 cm

Greyson and Preston have a piece of paper that is 10 inches by 9 inches.  What is the area of the paper?

• 100 sq. in.
• 79 sq. in.
• 90 sq. in.
• 90 in.

Calculate the area of this shape

• 84cm²
• 84cm
• 38cm
• 38cm²

Calculate the area of this shape

• 345cm²
• 76cm²
• 38cm²
• 175cm²