To find: the relation between interior and exterior angles and draw the object.
Answer to Problem 40E
The exterior angle of a triangle is equal to the sum of
Explanation of Solution
Given:
A triangle having exterior angle.
Concept used:
Linear pair or supplementary:
A pair of adjacent angle form when line intersect each other and sum of two adjacent angles is
Sum of the three angles of triangle is always
If the triangle is right triangle then other two angles other than
Calculation:
A triangle is shown. It can be seen that
Sum of interior angles of a triangle is always equal to
Hence, it concluded that the exterior angle of a triangle is equal to the sum of
Chapter 12 Solutions
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