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Earn +20 ptsQ: Can The law of cosines can only be applied to acute triangles?
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Can law of cosines can only be applied to acute triangles?
No, it applies to all triangles.
Can trigonometry be applied only in right angled triangles?
No. It can be used on any triangle.
How do you Compare and contrast an isosceles triangle and an acute triangle?
First, figure out what ways they are similar. Then, figure out what ways they are different. For example, they are both triangles, but iscoceles has 4 syllables, while acute only has two.
What are the least number of acute angles that a triangle can have?
It must have at least 2. We can prove this by contradiction. If there is one or less acute angle, there must be two or more angles of 90 degrees or more. This adds to over 180 degrees. Since triangles can only have a total of 180 degrees, this violates the definition of a triantle, so there must be at least two acute angles.
Does the Pythagoream Theorem Work on all triangles?
No, only right triangles
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