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18 questions
What is the area of sector of a circle with central angle 60°
πr2
2πr
6πr2
2πr2
The region bounded by two radii and corresponding arc of a circle is
A) Segment
B) Sector
C) Area
D) Perimeter
The region bounded by chord and corresponding arc of a circle is
A) Perimeter
B) Sector
C) Area
D) Segment
Angle of the sector is 90°then the ratio of Area of circle to area of sector is
A) 1:4
B) 1:2
C) 4:1
D) 2:3
Area of circle is 154cm2, and Area of minor sector is 7.7cm2, then calculate area of major sector of circle.
A) 145 cm2
B) 146.3 cm2
C) 77 cm2
D) 147 cm2
Area of the square that can be inscribed in circle of radius 8 cm
256 sq.cm
128 sq.cm
64 sq.cm
132 sq.cm
The perimeter of square circumscribing circle of radius 'a' cm is
8a cm
6a cm
10a cm
16a cm
The area of a segment of a circle is less than the area of its corresponding sector
True only for minor segment
True only for major segment
Alwys false
Area of a sector with central angle θ is
360θ×2πr
360θ×πd
If the perimeter and the area of a circle are numerically equal, then the radius of the circle is
A) 2 Units
B) 4 Units
C) 3 Units
D) 7 Units
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.( Use Pi =3.14)
25.2 in2
28.5 in2
31.4 in2
38.2 in2
A cathedral window is built in the shape of a semicircle. If the window is to contain three stained glass sections of EQUAL SIZE, what is the area of the YELLOW SECTOR?
3.3 ft2
4.5 ft2
6.3 ft2
7.1 ft2
The distance around a circle
area
diameter
circumference
radius
Area of a sector of central angle 120° of a circle is 3π cm2. Then the length of the corresponding arc of this sector is:
5.8 cm
6.1 cm
6.3 cm
6.8 cm
What is the area of the shaded region?
25π - 50
25π - 100
5π - 50
5π - 100
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