A 35 m long ladder just reaches a window of a building. If the ladder makes an angle theta with the level ground,such that tan theta =1/2√6.
Find the:
1-height of window
2-horizontal distance of the foot if the ladder from the building
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here is the answer if it is wrong please point out..
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kanika00:
It's wrong
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1-height of window = 35 (( 1 + 2√6) /23
2-horizontal distance of the foot if the ladder from the building = (58 x + 70 √6) /23
Step-by-step explanation:
height of ladder = 35 m
tan theta = 1/2√6
let height of wndow = x
tan theta = height of window / base
1/2√6 = x / x +35
x +35 = 2√6 x
x - 2√6 x = -35
x( 1- 2√6) = - 35
x = - 35 / ( 1- 2√6)
= - 35 (( 1 + 2√6) / (( 1- 2√6) ( 1 + 2√6))
= - 35 (( 1 + 2√6) / (1 - 24)
x = 35 (( 1 + 2√6) /23
2)horizontal distance of the foot if the ladder from the building
= x +35 (( 1 + 2√6) /23
=( 23 x + 35 x + 70 √6) /23
= (58 x + 70 √6) /23
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