Geometry Unit 11 Review

If r = 12 cm and R = 18 cm, what is the exact area of the shaded region in terms of ㄫ?

• 280ㄫ sq.cm

• 190ㄫ sq.cm

• 180ㄫ sq.cm

• 80ㄫ sq.cm

Given the pre-image circle with the equation: (x-4)² + y² = 5, what is the equation of the circle translated left 2 units and up 3 units?

• (x-2)² + (y-3)² = 5

• (x-2)² + (y+3)² = 5

• (x-6)² + (y-3)² = 5

• (x-6)² + (y+3)² = 5

Find the radius of Circle R.

What is the circumference of the circle with the equation:

(x - 7)² + (y + 8)² = 196

• 14

• 28

• 88

• 784

Find the area of the shaded sector of the circle. Leave your answer in terms of π.

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A circle has the equation  x² + y² + 3 = 12x - 8y. Write the equation in standard form.

• (x - 6)² + (y + 4)² = 49
• (x + 4)² + (y - 6)² = 49
• (x + 6)² + (y - 4)² = 49

• (x - 4)² + (y + 6)² = 49

The length of the arc is 16.2 cm. Calculate the size of the angle, x^∘.

• 116^∘

• 2^∘

• 29^∘

• 9^∘

Choose the equation that represents the circle with center (5, 9) and goes through (2, 9)

• (x+5)²+(y+9)²=3
• (x-5)²+(y-9)²=3
• (x+5)²+(y+9)²=9
• (x-5)²+(y-9)²=9

Find the area of the composite figure. Round your answer to the nearest tenth.

• 122.1 m²

• 128.1 m²

• 134.1 m²

• 138.1 m²

Which graph has the equation

(x + 3)² + y² = 4

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