If the angle of elevation of the sun changes from 45 degree to 60degree ,then the length of the shadow of a pillar decreases by 10m .the height of the pillars is
If the angle of elevation of the sun changes from 45 degree to 60degree ,then the length of the shadow of a pillar decreases by 10m .the height of the pillars is
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√3=AB/x
√3x=AB - (i)
In ∆ABD, tan 45°= P/B
1 = AB/10
10m=AB
Therefore,. The height of the pillar is 10m.