(111) In APOR
[Angle su
ZQPR + ZPRQ + ZPQR = 180°
70° +50° + ZPQR = 180°
120° + ZPQR = 180°
ZPQR = 180° - 120° = 60°
EXERCISE 12.1
Use Cordova Smart Class Software on the smart board in class to do Exercise
Which of the following triplets can be the angles of a triangle?
(1) 76°, 64°, 40
(ii) 30°, 70°, 90°
Two angles of triangle are of
(iii) 56°, 62°, 62
600