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Proof that sum of three angles …

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Proof that sum of three angles is 180
  • 2 answers

Arjav Nayak 4 years, 8 months ago

Given - ABC is the triangle in which angle 1,2,3 are the angles To prove - angle 1+2 +3+ =180 Construction- draw a line PQ ll to BC and the angles form 4 and 5 Proof Let The line PQ form a stright line and Angle 1+4+5 = 180. Eq 1 Angle 4 = 3 and angle 5 = 2. Eq 2 Putting Eq 2 to Eq 1 Therefore Angle1+2+3 = 180. Hence proved

Nitin Kumar 4 years, 8 months ago

In equilateral triangle
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