In an obtuse triangle, one angle is obtuse and the other two are acute. "The buildings are arranged in an obtuse triangle and occupy most of the long, thin parcel of land."
There are several different formulas. The best one to use depends on what information you have about the rest of the triangle.
It depends on what other information you have. If you have the lengths of both the other sides, use Pythagoras. If you have one side and one of the acute angles, use the sine (or cosine) ratio. There are other methods when other bits of information are available.
A scalene triangle normally has three different side lengths and three different acute angles that add up to 180 degrees.
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I assume that the second use of the word "triangle" in the question should be angle. An obtuse triangle must have two acute angles.
You can either use a protractor or, if you're given the other angles in a triangle, you can subtract them from 180. An acute angle is an angle less that 90 degrees.
That triangle is not a acute, its an obtuse.
In an obtuse triangle, one angle is obtuse and the other two are acute. "The buildings are arranged in an obtuse triangle and occupy most of the long, thin parcel of land."
The total degrees of a triangle is 180. If you use 90 on one right angle, the other two only have 90 left between them. Two angles that add up to 90 must be acute.
you put the dot (bottom middle) on one of the corners of a triangle and if the angle is more obtuse then acute you use the outer number but if more acute you use the inner number
An equilateral triangle has three acute internal angles. The injection caused acute pain, but only for a moment.
There are several different formulas. The best one to use depends on what information you have about the rest of the triangle.
It depends on what other information you have. If you have the lengths of both the other sides, use Pythagoras. If you have one side and one of the acute angles, use the sine (or cosine) ratio. There are other methods when other bits of information are available.
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By using trigonometry that is applicable to a right angle triangle.
A right triangle has one right angle and two acute angles. Right triangles have a hypotenuse and also two legs. You can use the Pythagorean Theorem to find the hypotenuse, or the two legs of the right triangle, as long as you have the side lengths of the other two sides on the right triangle.