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Mathematics 15 Online
Falconmaster:

Prove the following theorem indirectly. We will give you a start. Prove that a triangle cannot have two right angles. A triangle cannot have two right angles. Suppose a triangle had two right angles.

Elsa213:

A triangle only has 3 sides. However, if a triangle has 2 right angles, it will have four sides.

Elsa213:

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Elsa213:

Makes sense?

Falconmaster:

Yesh

Elsa213:

Goodie. c:

dude:

Also, triangles must have a total angle measure =180 90+90 is already 180

Falconmaster:

thanks gois

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