Question

In right angled Δ ABC, ∠B = 90°, ∠C = θ and if sin θ = 5/13 then find cos θ.

Answer 1

Answer:

pythagoras theorem

hypotenuse square=base square+p^2

13^2= base^2+5^2

169-25=base square

144=base square

base=12 cm

costheta= 12/13

Answer 2

Answer:

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