Two angles of a traingle are 40degree and 60 degree calculate all its outer angles
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Answer:
140 120 and 100 degrees
Step-by-step explanation:
Let the triangle be ABC
Where Angle A B and C are 40 60 and x degrees respectively .
By Angle Sum Property
A +B +C=180
40+60+x=180
x=80
Outer angle of A is 180-40 =140
Outer angle of B is 180-60 =120
Outer angle of C is 180-80 =100
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The outer angles will be 120 degrees because to find the outer angles of a polygon you do 360 degrees divided by number of sides. 360/3=120 degrees.
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