Circles and triangles

What is the point in the middle of a circle called?

• Radius

• Center

• Diameter

The line that goes from the center to any point on the circle is the __________.

• Radius

• Diameter

• Center

Tags

CCSS.HSG.C.A.2

The __________ is a line that goes from one point on a circle through the center to another point on the opposite side of the circle.

• Radius

• Diameter

• Center

Tags

CCSS.HSG.C.A.2

What is the definition of a circle that was presented in class and written in your math book?

• Something round

• The set of all points that are equidistant from a center.

• The radius plus the diameter.

• Pi (which could be 3.14 or 22/7)

What is the radius and diameter of this circle?

• Radius 7.75 ft

  Diameter 15.5 ft

• Radius 7.75 sq ft

  Diameter 15.5 sq ft

• Radius 15.5 ft

  Diameter 48.67 ft

• Radius 15.5 ft

  Diameter 7.75 ft

Tags

CCSS.7.G.B.4

What is the radius and diameter of this circle?

• Radius 9.8282 in

  Diameter 19.6564 in

• Radius 3.13 cm

  Diameter 5.26 cm

• Radius 6.26 in

  Diameter 3.13 in

• Radius 3.13 in

  Diameter 6.26 in

Tags

CCSS.7.G.B.4

What is the radius and diameter of this circle?

• Radius 18.5 cm

  Diameter 9.25 cm

• Radius 4.625 yd

  Diameter 9.25 yd

• Radius 9.25 yd

  Diameter 18.5 yd

• Radius 18.5 yd

  Diameter 9.25 yd

Tags

CCSS.7.G.B.4

Calculate the area of this circle. Use 3.14 for pi.

• 706.5 sq ft

• 94.2 sq ft

• 706.5 ft

• 47.1 sq ft

Tags

CCSS.7.G.B.4

Calculate the area of this circle. Use 3.14 for pi.

• 69.08 sq in

• 379.95 sq in

• 1519.76 in

• 34.54 sq in

Tags

CCSS.7.G.B.4

Calculate the area of this circle. Use 22/7 for pi. Round to the nearest hundredths place.

• 254.57 sq yd

• 28.26 sq yd

• 56.57 sq yd

• 254.34 sq yd

Tags

CCSS.7.G.B.4