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INET || Weekly Revision || Quiz 2020

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Question 1

A circle of diameter 8 cm is placed in such a manner that it touches two perpendicular lines. Then another smaller circle is place in the gap such that it touches the lines and the circle. What is the diameter of the smaller circle ?

Question 2

The shadow of a tower standing on a level plane is found to be 50 m longer when the Sun’s elevation is 30o than when it is 60o. what is the height of the tower?

Question 3

The diagonals of a rhombus are of length 20 cm and 48 cm. What is the length of a side of the rhombus?

Question 4

In a triangle PQR, X is a point on PR Y is a point on QR such that PR = 10 cm, RX = 4 cm, YR = 2 cm, QR = 5 cm. Which one the following is correct?

Question 5

The angle of elevation of a tower at a level ground is 30°. The angle of elevation becomes θ when moved 10 m towards the tower. If height of the tower is 5 √3 m, then what is the value of θ?
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Dec 21CDS & Defence