Question

From the diagram below, if AB = 4, BC = 3, and AC = 5, find the sin, cos, and tan of < A.

Answer 1

Answer: Sin A = 3/5

Cos A = 4/5

Tan A = 3/4

Step-by-step explanation:

Looking at the right angle triangle ABC, taking angle A as the reference angle,

AC represents the hypotenuse

BC represents the opposite side

AB represents the adjacent side.

1) Sin θ = opposite side/hypotenuse.

Sin A = BC/AC

Sin A = 3/5

2)Cos θ = adjacent side/hypotenuse

Cos A = AB/AC

Cos A = 4/5

3)Tan θ = opposite side/adjacent side

Tan A = BC/AB

Tan A = 3/4

Answer 2

Answer:

b is the answer

Step-by-step explanation:

I always say SOHCAHTOA meaning

sine=opp./hyp.

cosine=adj./hyp.

tan=opp./adj.

so

sine=3/5

cos=4/5

tan=3/4

ask me anywhere there is a challenge