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There is a small island in the river which is 100m wide and a tall tree stands on the Island.P and Q are points directly opposite each other on the two banks and in line with tree. If the angles of elevation of the top from P and Q are respectively 30 and 45 degree, find the hight of the tree in metres?

Posted by Riya Trivedi 6 years, 11 months ago

CBSE > Class 10 > Mathematics

6 answers

Riya Trivedi 6 years, 11 months ago

Thanks Pooja

Puja Sahoo 6 years, 11 months ago

Riya height of the tree will be 50(root 3 - 1).

Riya Trivedi 6 years, 11 months ago

Thanks shivam

Shivam The Galaxy 6 years, 11 months ago

Then tan 30= h/x x=h√3 Now, Tan 45 = h/100-x h = 100-h√3 h = 100/√3+1 h = 100(√3-1)/2 h = 50(√3-1)

Riya Trivedi 6 years, 11 months ago

Shivam maine procss kiya but answer nhi mila aap answer bta do

Shivam The Galaxy 6 years, 11 months ago

Let Height of tree be 'h' and distance of tree from point p and q be x and 100-x respectively

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This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

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CBSE > Class 10 > Mathematics

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