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Can The 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
Can The law of cosines can only be applied to acute triangles?
No, it applies to all triangles.
Can The law of cosines can only be applied to right triangles?
Cosine Rule: a2 = b2+c2-2bc*cos A is applicable to all triangles
Do all acute triangles have only one acute angle?
No. All triangles MUST have at least two acute angles.
What shapes contain only acute angles?
A triangle is the only shape that can have only acute angles inside it.
How many acute angles are in a right triangles?
In a right triangle there is only one acute angles.
Is all acute triangles similar?
Only if they have the same angles
When would you use the law of sines or law of cosines instead of a trigonometric ratio?
Trigonometric ratios, by themselves, can only be used for right angled triangles. The law of cosines or the sine law can be used for any triangle.
Which shapes have only acute angles?
some triangles and rhombuses. trapoziods do not have acute angles it has obtuse angles. :)
Do acute triangels have right angels?
No because only right angle triangles have 2 acute angles
Is the pythagorean theorem true for an acute triangle?
No, the Pythagorean Theorem only works on right triangles. You could use the law of cosines, though: c^2=a^2+b^2-2ab*cos(C) Where C is the measure of the angle between sides a and b.
Are all acute triangles isosceles triangles.?
No because a triangle is only an isosceles triangle when it has 2 equal sides
Are all acute triangles isosceles triangles?
No because a triangle is only an isosceles triangle when it has 2 equal sides
