20 Aug 2020
Class 10 ICSE SELINA MATH HEIGHT AND DISTANCE EX 22C QUESTION 15 | From a point, 36 m above the surface of a lake, the angle of elevation of a bird is observed to be 30o and the angle of depression of its image in the water of the lake is observed to be 60 degree . Find the actual height of the bird above the surface of the lake.
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Class 10 Airthmatic Pogression (AP) important Questions
Q1. The Sum of three numbers in A. P. is 15 and the sum of the squares of the extreme terms is 58. Find the numbers. (answer: 3,5,7) Q...
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