Question

Given right triangle MNO, which represents the value of cos(M)?

A. ON/MN
B. MN/MO
C. ON/MO
D. MN/ON

Answer 1

Answer: OPPTION B

Explanation:

Given a right triangle, the cosine of an angle is:

`cos\alpha=adjacent/hypotenuse`

Therefore, given the triangle MNO, you can conclude that cos(M) is the one shown below:

adjacent=MN

hypotenuse=MO

Then:

`cos(M)=MN/MO`

Answer 2

Option B. MN/MO

Explanation:

In a right angle triangle cosine of any acute angle = Base/ Hypotenuse

In the ∠ NMO Hypotenuse is MO and base of the triangle is MN.

Therefore cos (M) = Base / Hypotenuse = MN / MO

Therefore option B is the right answer.