The hypotenuse of a right triangle is 30 cm and the projection of a leg on it 10.8 cm. Find the other leg.

Question

anthonyym · Answer

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Use pythagorean theorem

mehek14 · Answer

Use the Pythagorean Theorem

$a^2+b^2=c^2$

a and b are the legs, and c is the hypotenuse 

$10.8^2+b^2=30^2\30^2-10.8^2=c^2$

anonymous · Answer

please help me

mehek14 · Answer

find $30^2$ and $10.8^2$

jhonyy9 · Answer

@Mehek14 sorry for my question,but i think that this text wan meaning different what you have understood it there - so the projection of a leg on it 10,8 cm - i think that this mean the projection of a leg on hypotenuse and not the length of a leg ,so than this mean that not can using Pythagorean theorem here - hope i understood it right

jhonyy9 · Answer

@Kainui your opinion please about ? thank you 
@Directrix please your opinion ??? thank you

directrix · Answer

See attached diagram for visual of projection of leg on hypotenuse.

directrix · Answer

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