Question

In triangle PQR, PQ=QR. If angleQ =100 then find angle P and angle R.​

Answer 1

Answer:

angle P+angleQ+angleR=180(angle sum property of triangle) -1

angleP=angleR(opposite angles of equal sides PQ=PR are equal)

angle P=angleR=x

from equation 1

x+x+100=180 (Q=100and P=R=x)

2x+100=180

2x=180-100

2x=80

x=80/2

x=40

so, angle P=angleQ=40(prooved)

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Answer 2

Answer:

P=40 ; R=40

Step-by-step explanation:

• Because Triangle measure is=180
• so, angle Q is 100
• Triangle =180
• P+ Q + R =180
• P +100 + R=180
• P+ R =180-100
• = 80
• Angel P & angle R are same
• measurement
• P = 40 ; R = 40