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WorkShop Calculation and Science
AREA OF SURFACES
Set 2
Set 2
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Q12631
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What is the radius of the circle if the angle of sector is 90 Degree and the area of the circle is 196 cm<sup>2</sup>?
A
15.77 cm
B
15 cm
C
14.85 cm
D
14.95 cm
Q12632
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What is the area of the sector, whose diameter is 40 mm and angle is 120 Degree?
A
418.66 mm<sup>2</sup>
B
400.50 mm<sup>2</sup>
C
415.5 mm<sup>2</sup>
D
416.6 mm<sup>2</sup>
Q12633
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What is the length of arc of a sector, whose radius is 15 cm and angle is 40 Degree?
A
9.75 cm
B
9.8 cm
C
10.60 cm
D
10.4 cm
Q12634
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What is the length of arc of a sector whose radius is 3.6 cm and angle is 36 Degree?
A
2.10 cm
B
2.26 cm
C
22.6 cm
D
21.0 cm
Q12635
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What is the area of the circle, whose diameter is 50 cm?
A
1900 cm<sup>2</sup>
B
1950 cm<sup>2</sup>
C
1962.5 cm<sup>2</sup>
D
1960 cm<sup>2</sup>
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