Question

∆PQR, angle p= 90, angle Q = 50 then then R=?

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Answer 1

R=40

Step-by-step explanation:

P+Q+R=180

90+50+R=180

140+R=180

R=180-140

R=40

Answer 2

Answer:

angle p=90

angle q=50

then,

p+q+r=180. (angle sum property of triangle)

90+50+r=180

140+r=180

r=180-140

r=40