7th Grade Geometry

What is the radius of this circle?

• 18 in
• 36 in
• 9 in

What is the name of the line that goes from one end of the circle to the other and crosses the center point?

• Area
• Diameter
• Circumference
• Radius

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

Find the area of the circle.

• 9π cm²
• 36π cm²
• 3π cm²
• 2.25π cm²

_{Find the Circumference.}

• 5π in
• 10π in
• 25π in
• 2.5π in

What is the perimeter of this semi circle?

• 3.6π m
• 7.2π m
• 14.4π
• 12.96π

What is the area of this semi-circle? Round to the nearest hundredth!

• 50.27 cm²
• 100.53 cm²
• 201.06 cm²
• 25.13 cm²

If the word problem is asking you to find the space inside the circle, which formula should you use?

• r = d/2
• d = 2r
• C = πd
• A = πr²

If the problem ask you to find the distance around a circle, which formula should you use?

• r = d/2
• d = 2r
• C = πd
• A = πr²

what is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm