Question

In a Δ ∠ ABC B , = 90° and AB = 4 cm, BC = 3 cm and AC = 5 cm. Find sinA.In a Δ ∠ ABC B , = 90° and AB = 4 cm, BC = 3 cm and AC = 5 cm. Find sinA​

Answer 1

Answer:

answer is in attachment

Step-by-step explanation:

plzz follow me and Mark me as brainlest I want to became ace

Answer 2

Answer:

We have, AB = 4 and BC = 3.

By Pythagoras theorem, we have

AC

2

=AB

2

+BC

2

⇒AC=

AB

2

+BC

2

⇒AC=

4

2

+3

2

=

25

=5

When we consider the t-ratios of ∠A, we have

Base = AB = 4, Perpendicular = BC = 3, Hypotenuse = AC = 5.

∴sinA=

AC

BC

=

5

3

,cosA=

AC

AB

=

5

4

,tanA=

AB

BC

=

4

3

Step-by-step explanation:

please Mark brainiest