Answer:

angle p= 100°

angle q=40°

angle r= 40°

Step-by-step explanation:

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Answer:

P = 100 , Q = 40 , R = 40

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Step-by-step explanation:

P:Q:R = 5:2:2

P= 5x

Q=2x

R=2x

as sum of all angles of a triangle is 180

5x + 2x + 2x = 180

9x = 180

x = 180÷9

x = 20

so substituting x = 20 in ratio

P = 5x = 5 × 20 = 100

Q= 2x = 2 × 20 = 40

R = 2x = 2× 20 = 40

therefore P = 100 , Q = 40 , R = 40