In each of the following figure, calculate the unknown marked angle – InterviewSolution

1.

In each of the following figure, calculate the unknown marked angle

Answer»

Hello,

According to ANGLE Sum PROPERTY,

= TOTAL sum of all INTERIOR angles of Triangle is 180⁰

<Q + <P + <R = 180⁰ (By A.S.P)
80⁰ + y + 20⁰ = 180⁰
y = 180⁰ – 100⁰

y = 80⁰

Hope you got the answer

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