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Question 1
In a right angled triangle ABC, right-angled at B, if cos A = 
, then what is sin C equal to ?
, then what is sin C equal to ?
Question 2
A vertical pole stands on the level ground. From a point on the ground, 25 m away from the foot of the pole, the angle of elevation of its top is found to be 
. Find the height of the pole.
. Find the height of the pole.
Question 3
The length of shadow of a tree is 16 m when the angle of elevation of the sun is 600. What is the height of the tree?
Question 4
Two observers are staioned due north of a tower (of height x metre) at a distance y metre from each other. The angles of elevation of the tower observerd by them are 30o and 45o respectively. Then x/y is equal to
Question 5
From a tower above a road the angle of depressions of two children on the same side are 
.If distance between two children is 1 km then find the height of the tower?
.If distance between two children is 1 km then find the height of the tower?
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Feb 9CDS & Defence
