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How do you Prove that the sum of the exterior angle so formed is 360 if the sides of a triangle are produced in order?
Wiki User
∙ 8y ago
All exterior angles of any polygon add up to 360 degrees because angles on a straight line add up to 180 degrees as for example an equilateral triangle has 3 equal interior angles of 60 degrees and so 180-60 = exteror angle of 120 degrees.
Therefore 3 times 120 = 360 degrees.
Wiki User
∙ 8y ago
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How do you prove an isosceles triangle?
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Which postulate or theorem can you use to prove that triangle ABC triangle EDC?
ASA
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L
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SSS
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How do you prove a right angle triangle?
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Which postulate or theorem can you use to prove that triangle ABC triangle EDC?
ASA
How do you prove that isosceles triangles have three equal sides?
If You Prove An Isosceles Triangle To Have Three Equal Sides. You Now Have Disproved It As Being An Isosceles Triangle. So Even If You Could You Would Now Have An Equilateral Triangle. I Just Can`t See A Way This Can Be Done.
How can you prove that a triangle is an isosceles triangle with some examples?
An isosceles triangle has 3 sides 2 of which are equal in length An isosceles triangle has 3 interior angles 2 of which are the same size
Using coordinate geometry of 3D prove that the medians of a triangle are concurrent?
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