Illustrative Math Circle

A central angle measures 4 radians and has an arc length of 28 inches. What is the diameter of the circle?

• 14 inches

• 7 inches

• 49 inches

• 6 inches

Tags

CCSS.HSG.C.B.5

What is the length of the arc shown in​ red?

• 18π cm

• 2π cm

• 4π cm

• 3π cm

Tags

CCSS.HSG.C.B.5

Find the area of the shaded sector of the circle.

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• 
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Tags

CCSS.HSG.C.B.5

Tags

CCSS.HSG.C.A.2

Which point is equidistant from the vertices?

• Circumcenter

• Incenter

• Neither

• Bilateral

Tags

CCSS.HSG.C.A.3

What's the scale factor that turns Rectangle R into Rectangle B?

• 1/6

• 1/2

• 1/3

• 2

Tags

CCSS.7.G.A.1

What is the center of Dilation?

• Point C

• The large square

• The small square

• The lines connecting the squares to point C

Tags

CCSS.8.G.A.3

What is Angle ∠C?

• 91°

• 78°

• 102°

• 180°

Tags

CCSS.7.G.B.5

Which of these numbers would be the farthest away from zero on a number line? Circle that number.

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Which of these numbers would be the closest to zero on a number line? Circle that number.

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B