Question

find the cos teta value of the given figure triangle ABC A= teta B=90° AB=3 Bc=4 AC =5​

Answer 1

Required Answer :

→ Cos θ = 3/5

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Here, as per the given information :

• Angle A = θ
• Angle B = 90°
• AB = 3
• AC = 5
• BC = 4

Now, we have to calculate value of θ :

So, as we know that :

• Cos θ = Base/Hypotenuse

• Base = AB
• Base = 3

• Hypotenuse = AC
• Hypotenuse = 5

Inserting values,we get :

→ Cos θ = 3/5

Hence, tha value of cos θ is 3/5.

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Some related formulae :

• sin θ = P/H

• cos θ = B/H

• tan θ = P/B

• cosec θ = H/P

• sec θ = H/B

• tan θ = P/B

Where,

• P denotes perpendicular.
• H denotes hypotenuse.
• B denotes base.