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RRB JE 2019 | Day 48 | Quant [Circles] Quiz 29

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Question 1

What is the area of the sector whose central angle is 90 ° and radius of the circle is 14 cm?

Question 2

A gear 12 cm in diameter is turning a gear 18 cm in diameter. When the smaller gear has 42 revolutions, how many has the larger one made?

Question 3

Two circles touch each other externally at point A and PQ is a direct common tangent which touches the circles at P and Q respectively. Then PAQ =

Question 4

A 7 m wide road runs outside around a circular park, whose circumference is 176m.The area of the road is: [use ]

Question 5

Two circles C1 and C2 touch each other internally at P. Two lines PCA and PDB meet the circles C1 in C, D and C2 in A, B respectively. If ∠BDC = 120o, then the value of ∠ABP is equal to

Question 6

Find the radius of the circle if the length of its arc is 33 cm and the corresponding central angle is 90 °?

Question 7

In circular measure, the value of the angle 11 °15’ is

Question 8

From a point P, two tangents PA and PB are drawn to a circle with centre O. If OP is equal to diameter of the circle, then APB is

Question 9

In a circle of radius 21 cm, an arc subtends an angle of 72° at the centre. The length of the arc is

Question 10

If the four equal circles of radius 3 cm touch each other externally, then the area of the region bounded by the four circles is
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Mar 18ESE & GATE EE