Question

Triangle J K L is shown. Angle J K L is a right angle. The length of J K is 12 and the length of K L is 5.

Given right triangle JKL, what is the value of cos(L)?


Five-thirteenths

Five-twelfths

Twelve-thirteenths

Twelve-fifths

Answer 1

A

Explanation:

Answer 2

Answer: First option is correct.

Explanation:

Since we have given that

JKL is a right triangle.

Length of JK = 12

Length of KL = 5

By pythagorus theorem, we get that

`JK^2+KL^2=JL^2\\\\12^2+5^2=JL^2\\\\144+25=JL^2\\\\169=JL^2\\\\JL=√(169)\\\\JL=13`

So, cos (L) would be

`(Base)/(Hyptonuse)=(5)/(13)`

Hence, First option is correct.