Show that angle a+ angle b is equal to angle d
2 answers:
sum of two angles of triangle are equal to the exterior angle of triangle
Answer:
Below.
Step-by-step explanation:
a + b + c = 180 degrees (angles in a triangle)
c + d = 180 degrees ( adjacent angles).
So, subtracting the 2 equations:
a + b + c - c - d = 0
a + b - d = 0
a + b = d.
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Step-by-step explanation:
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