Question

The exterior of angle PRS of triangle PQR is 105 degree. If Q=70 degrees, find angle P.

Answer 1

Exterior angle = 105

Q=70

Exterior angle is equal to the sum of any two interion angle

so we can take the two interion angles as P and Q

P+Q=105

P+70=105

105-70=P

P=35

Answer 2

Answer:

45

Step-by-step explanation:

Given, PRS = 105

angle Q = 70

angle P =

PRS+PRQ=180 (linear pair)

105+PRQ = 180

PRQ = 65

angle P + Q + R = 180 ( angle sum property)

p+70+65= 180

p= 45 degree.

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