In a triangle A B C , if a = 3 , b = 4 and sin A = 3 4 then ∠ C B A = ?

Question

In a triangle A B C , if a = 3 , b = 4 and sin A = 3 4 then ∠ C B A = ?, 60 ∘, 75 ∘, 90 ∘, 45 ∘

MARKS App · Accepted Answer

Here given that, In a triangle A B C , a = 3 , b = 4 and sin A = 3 4 Using Sine Rule, we know that sin A a = sin B b ⇒ 3 4 3 = sin B 4 ⇒ sin B = 1 ⇒ B = 90 ° ( ∵ sin 90 ° = 1 ) ⇒ ∠ C B A = 90 °

Search any question & find its solution

Looking for more such questions to practice?