there are 80 trees in a garden due to storm 16 trees are broken what percentage of tree's are now in good condition
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Answers
Answered by
0
Let the Height of the Tree =AB+AD
and given that BD=8 m
Now, when it breaks a part of it will remain perpendicular to the ground (AB) and remaining part (AD) will make an angle of 30o
Now, in △ABD
cos30o=ADBD⇒BD=23AD⇒AD=32×8
also, in the same Triangle
tan30o=BDAB⇒AB=38
∴ Height of tree =AB+AD=(316+38)m=324m=83m
Answered by
2
Answer:
80%
Step-by-step explanation:
Total number of trees=80
Number of trees broken=16
Therefore trees left in good condition=(80-16)=64
Therefore percentage of trees in good condition
= (64/80)×100%
=(8×10)%
=80%
Thus,80% trees are left in good condition after the storm.
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