TEKS.MATH.9-12.IV.C.1

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.
• 10.5 sq. in.
• 31.4 sq. in.
• 38.2 sq. in.

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TEKS.MATH.9-12.IV.C.1

The distance around a circle

• Diameter
• Radius
• Circumference
• Area

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TEKS.MATH.9-12.IV.C.1

What is the area of this circle?

• 1385.44 sq. ft
• 2142.12 sq. ft
• 5541.77 sq. ft
• 1289.12 sq. ft

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TEKS.MATH.9-12.IV.C.1

Find the area of the triangle

• 4 km²
• 16 km²
• 64 km²
• 8 km²

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TEKS.MATH.9-12.IV.C.1

Area of a Square

• A=rx2
• A=s²
• A=LxW

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TEKS.MATH.9-12.IV.C.1

Find DE

• 5
• 6
• 20
• 21

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TEKS.MATH.9-12.IV.C.1

The two triangles are isosceles, what is the area? 

• 42 square feet
• 45 feet
• 45 ft²
• 28 ft²

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TEKS.MATH.9-12.IV.C.1

What is the area of the triangle?

• 60 square units

• 90 square units

• 45 square units

• 30 square units

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TEKS.MATH.9-12.IV.C.1

What is the area of this figure?

• 7 units²
• 15 units²
• 7 1/2 units²
• 15 1/2 units²

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TEKS.MATH.9-12.IV.C.1

In a​ circle, a 90° sector has area 64π in². What is the radius of the​ circle?

• 16 in

• 32 in

• 64 in

• 128 in

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TEKS.MATH.9-12.IV.C.1