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Question 1
In the following figure, there are two concentric circles having centre O and the radii are 5 cm and 3 cm respectively. Two tangents TA and TB are drawn from the point T outside the circles to both circles as shown in the figure. If TA = 12 cm then what will be the value of TB?
Question 2
If two circles touch each other internally. The greater circle has its radius as 6 cm and the distance between the centres of the circles is 2 cm. The radius of the other circle is
Question 3
In a trapezium ABCD, AB || CD, AB < CD, CD = 6 cm and distance between the parallel sides is 4 cm. If the area of ABCD is 16 cm2, then AB is
Question 4
If a regular polygon has each of its angles equal to 
times of two right angles, then the number of sides is
times of two right angles, then the number of sides is Question 5
In a triangle PQR, PQ = PR and ∠Q is twice that of ∠P. Then ∠Q is equal to
Question 6
If 2 cones have volumes in the ratio 12:5 and their radii are in the ratio 6:11 then what is the ratio of their heights?
Question 7
A solid cylinder has the total surface area 231 sq. cm. If its curved surface area is 2/3 of the total surface area, then the volume of the cylinder is
Question 8
If A be the surface area of cuboid of dimension x, y, z and V is its volume, then A/V will be equal to
Question 9
The diagonal of a square is 4√2 cm. The diagonal of another square whose area is double to that of the first?
Question 10
A rectangular floor of dimensions 18*12 is to be decorated in such a way that a circle of radius 5cm in the middle is to be painted blue then a square of side 10 cm inscribing the circle is to be painted pink. Find the cost if blue paint costs 5$/cm2 and pink paint costs 10$/cm2.
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Jun 10SSC & Railway
