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No, it applies to all triangles.

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Ora Nader

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Q: Can law of cosines can only be applied to acute triangles?
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Related questions

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.


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


What shapes contain only acute angles?

A triangle is the only shape that can have only acute angles inside it.


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.


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.


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


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