please help me in solving question no 13
Attachments:
Answers
Answered by
4
one - third of a right angle means 1/3 of 90°
so, a is greater than b by 30°
a and b form linear pair.
so , a+b= 180°
(30° + b )+b = 180°
30° +2b= 180°
180° -30° = 2b
150° = 2b
b = 150/2
= 75°
and a= 75+30 = 115°
so, a is greater than b by 30°
a and b form linear pair.
so , a+b= 180°
(30° + b )+b = 180°
30° +2b= 180°
180° -30° = 2b
150° = 2b
b = 150/2
= 75°
and a= 75+30 = 115°
arinaphukan:
thank s but 75+30=105
oopsie !! typing mistk . m really sorry :-(
Similar questions