Annie is making a design of a building. In order to make an accurate design, she has to use a drafting triangle having a vertex angle exactly equal to 90°. Annie has the drafting triangles shown below.
Which drafting triangle is accurate? Using complete sentences, justify your answer

Question

Annie is making a design of a building. In order to make an accurate design, she has to use a drafting triangle having a vertex angle exactly equal to 90°. Annie has the drafting triangles shown below.
Which drafting triangle is accurate? Using complete sentences, justify your answer

anonymous · Answer

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anonymous · Answer

Triangle 1 is correct drafting triangle. Since, the drafting triangle must have a 90 degree vertex angle, we can use pythagoreans thereom to find a triangle, such that, a^2 + b^2 = c^2.