Question

In triangle PQR right angle at q ,then find the value of side p+r
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Answer 1

Answer:

The value of sin(P+R)=1 .

Given : ∆ PQR is right angled at Q.

i.e. The measure of ∠Q= 90°.

Angle sum property : The sum of all angles in a triangle = 180°

So in Δ PQR , we have

∠P+∠Q+∠R=180°     ( By Angle sum property)

⇒ ∠P+90°+∠R=180°

⇒∠P+∠R=180° -90°

⇒∠P+∠R=90°

Now , the value of  sin(p+r)=sin(90)=1

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