Question

Determine the sine, cosine, and tangent of the angle.

Answer 1

The correct answer is option d

Explanation:

From the given figure we can see that, a right angled triangle.

Points to remember

Sinθ = Opposite side/Hypotenuse

Cosθ = Adjacent side/Hypotenuse

Tanθ = Opposite side/Adjacent side

Let the angle be θ

To find sine, cosine, and tangent

Sinθ = Opposite side/Hypotenuse = 9/15

Cosθ = Adjacent side/Hypotenuse = 12/15

Tanθ = Opposite side/Adjacent side = 9/12

The correct answer is Option d

Answer 2

D

Explanation:

using the formulae that states; SOHCAHTOA

where sine Ф= opposite/hypotenuse, cosine Ф= adjacent/hypotenuse and tan Ф= opposite/adjacent then

sine Ф=9/15 cosine Ф= 12/15 and tan Ф=9/12