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gugha priya

· started a discussion

· 1 Months ago

Please elaborate (Question: 249148.0 )

Please elaborate the equations

Question:
In a right angled ∆ABC, ∠ABC = 90°, BN is perpendicular to AC, AB = 6 cm and AC = 10 cm. Then the square root of AN : NC is —
Options:
A) 3 : 4
B) 9 : 16
C) 16 : 100
D) 2 : 5
Solution:

Ans: (a) 


Vyomdeep

· commented

· 1 Months ago

Short trick :- If the dimensions of a right angle triangle are of triplet ratio 3x (perp),4x(base),5x(hyp) then a perpendicular dropped on hypotenuse always break the hyp in the ratio - 9:16
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