Use the method Of A.S.P - Angle Sum Property
ANGLE SUM PROPERTY:- THE SUM OF ANGLES IN A TRIANGLE IS 180 Degree
Step-by-step explanation:
For Example:. Find the third angle if the two angles of a triangle are 60 degrees and 30 degree
Sol: Given that,
The two angles of a triangle = 60 degrees and 30 degree
The third angle=?
60+30+x = 180 degree(Angle Sum Property)
90+x = 180 degrees
x= 180 - 90 degrees
x= 90 degrees
CHECK:-
We know that The sum of angles of a triangle is 180
So , 60+30+90= 180
90+90=180
180=180
Therefore, Left hand side = Right hand side
( L.H.S = R.H.S)
