6.7 Assessment Review

If a circle has a diameter of 45 feet, what is its radius?

• 90 feet
• 22.5 feet
• 45 feet
• 180 feet

What is the correct formula for the Area of a Circle? 

• A= π x d
• A = π x d²
• A= π x r²

Find the PERIMETER of this figure.

• 20 square feet
• 20 cm
• 25 square feet
• 20 cm sq.

How should we find the area of this circle?

• π x 12

• π x 6

• π x 12 squared

• π x 6 squared

What is the circumference of a circle?

• the distance around a circle

• the area of a circle

• halfway through a circle

• a line through the center of a circle

π represents which ratio?

• circumference / diameter

• diameter / circumference

• circumference x diameter

• diameter - circumference

A field has a total area of 70 square meters. The field is 10 meters wide. What is the length of the field?

• 700 meters

• 7 meters

• 60 meters

• 80 meters