Question

In triangle PQR, 1/5 angle P=1/4 angle Q=1/3 angle R then angle P=? a) 30⁰ b) 75 degrees c) 45⁰ d) 35⁰​

Answer 1

Answer:

b) 75° is correct options

Step-by-step explanation:

Let us say the condition given by you be k

$\frac{P}{5} =\frac{Q}{4} =\frac{R}{3} = k$

So, P = 5k, Q = 4k, R = 3k

We know that sum of all angles of triangle is 180 degrees

So, P + Q + R = 180

=> 5k + 4k + 3k = 180

=> 12k = 180

=> k = 180/12

=> k = 15°

Now, P = 5k = 5 × 15° = 75°

Hope it helps

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