Question

In APQR, measure of P = 80° and
Q = 65°. Find the measure of the
exterior angle at vertex R.​

Answer 1

Answer:

145°

Step-by-step explanation:

P + Q + R = 180° Measure of all angles of triangle is 180°

so 80+65+R = 180°

so R = 180- 145

R = 35°

Exterior angle = 180° - Interior Angle

so exterior angle is 180-35

exterior angle 145°

Answer 2

Answer:

APQR

p = 80°

Q = 65°

A = X

R = y

APQR = 360°

360° - 80° + 65°

360° - 145° = 215°

A = X

R = Y

A = 110° - y

R = 105°

A + P + Q + R = APQR

110° + 80° + 65° + 105° = 360°

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