Ex – 6.1 Que No. 2 Q.2) Give two different examples of pair of (i). Similar figures are :- Solution:- (a). Any two squares are :- (b). Any two rectangles are :- (ii). Non – similar figures are :- Solution:- (a). Circle and Triangle are :- (b). Rectangle and Square are :-
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Ex – 6.1 Que No. 1 Q.1) Fill in the blanks using the correct word given in brackets : (i). All circles are _________ (congruent, similar). Solution:- Both circles have the same shape but not the same size because all the circles have the same shape but the same size is not necessary. Hence all
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Ex – 9.1 Que No. 15 Q.15) A straight highway leads to the foot of a tower. A man standing at the top of the tower observes a car at an angle of depression of 30°, which is approaching the foot of the tower with a uniform speed. Six seconds later, the angle of depression
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Ex – 9.1 Que No. 14 Q.14) A 1.2 m tall girl spots a balloon moving with the wind in a horizontal line at a height of 88.2 m from the ground. The angle of elevation of the balloon from the eyes of the girl at any instant is 60°. After some time, the angle
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Ex – 9.1 Que No. 13 Q.13) As observed from the top of a 75 m high lighthouse from the sea-level, the angles of depression of two ships are 30° and 45°. If one ship is exactly behind the other on the same side of the lighthouse, find the distance between the two ships. Solution:-
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Ex – 9.1 Que No. 12 Q.12) From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60° and the angle of depression of its foot is 45°. Determine the height of the tower. Solution:-
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Ex – 9.1 Que No. 11 Q.11) A TV tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower, the angle of elevation of the top of the tower is 60°. From another point 20 m away from this point on the line joing this
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Ex – 9.1 Que No. 10 Q.10) Two poles of equal heights are standing opposite each other on either side of the road, which is 80 m wide. From a point between them on the road, the angles of elevation of the top of the poles are 60° and 30°, respectively. Find the height of
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Ex – 9.1 Que No. 9 Q.9) The angle of elevation of the top of a building from the foot of the tower is 30° and the angle of elevation of the top of the tower from the foot of the building is 60°. If the tower is 50 m high, find the height of
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Ex – 9.1 Que No. 8 Q.8) A statue, 1.6 m tall, stands on the top of a pedestal. From a point on the ground, the angle of elevation of the top of the statue is 60° and from the same point the angle of elevation of the top of the pedestal is 45°. Find
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