Morris: Geometry Warmup

What is the formula for the circumference of a circle?

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CCSS.HSG.GMD.A.1

Find the Circumference (round to nearest tenth):
radius = 6 cm

• 37.7 cm
• 37.8 cm
• 37 cm
• 18.8 cm

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CCSS.HSG.GMD.A.1

What is the area of this circle?

• 163.2
• 15.3
• 124.2
• 113.1

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CCSS.HSG.GMD.A.1

Which procedure should be used to find the area of the shaded region?

• Subtract the perimeter of the trapezoid from the area of both circles.

• Subtract the circumference of both circles from the area of the trapezoid.

• Subtract the area of the trapezoid from the area of both circles.

• Subtract the area of both circles from the area of the trapezoid.

What is the area of the shaded region?

Note: the cut-out is a quarter of a circle

• 4.8 cm²

• 5.3 cm²

• 8.4 cm²

• 7.1 cm²

What is the area of the green shaded segment?

• 16π - 64

• 8π - 32

• 8π - 64

• 16π - 32

Write the equation of a circle with center (h,k) and radius r.

• x^2 + y^2  = r^2
• (x + h)^2 +  (y + h)^2 = r^2
• (x - h)^2 + (y - k)^2 = r^2
• (x - h)^2 - (h - k)^2 = r

Tags

CCSS.HSG.GPE.A.1

What is the equation of the circle?

• (x + 1)^2 + (y + 1)^2 = 3

• (x - 1)^2 + (y - 1)^2 = 3

• (x + 1)^2 + (y + 1)^2 = 9

• (x - 1)^2 + (y - 1)^2 = 9

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CCSS.HSG.GPE.A.1

Write the most simplified equation of a circle with a center of (7, 0) and a radius of 7.

• (x - ^7)^2 + y^2 = 49

• x^2 + (y - 7)^2 = 49

• (x + 7)^2 + y^2 = 49

• (x - 7)^2 + (y - 0)^2 = 49

Tags

CCSS.HSG.GPE.A.1

What is the center of a circle with the equation (x - 4)² + y² = 5?

• (-4, 0)

• (4, 0)

• (4, 5)

• (-4, 5)

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CCSS.HSG.GPE.A.1