Q: Why does the obtuse triangles has the smaller perimeter than other triangles?

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An obtuse triangle equals 180°, like all other triangles but it must have one angle that is greater than 90°.

infinite amounts of isosceles triangles as any length can be any size, just in the same ratio to each other.

The answer will depend on what the fraction relates to: their perimeter, their area, some other aspect.

Obtuse triangles and right triangles certainly are not the same, but there are three features both have in common: Both have 3 sides Both have 3 interior angles Both have a single side which is longer than either of the other two, but shorter than the sum of the other two.

If the 2 triangles are right triangles, which are congruent to slicing the rectangle on the diagonal, then arrange one on top of the rectangle, and the other to the side, so that the two hypotenuses are in line with each other. This will make a bigger right triangle, which is similar to the smaller right triangles - each side is double of the smaller triangles.

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An obtuse triangle equals 180°, like all other triangles but it must have one angle that is greater than 90°.

infinite amounts of isosceles triangles as any length can be any size, just in the same ratio to each other.

The answer will depend on what the fraction relates to: their perimeter, their area, some other aspect.

Obtuse triangles and right triangles certainly are not the same, but there are three features both have in common: Both have 3 sides Both have 3 interior angles Both have a single side which is longer than either of the other two, but shorter than the sum of the other two.

An obtuse angle is greater than 90° (and less than 180° ) The other two angles therefore total less than 90° and so both must be acute angles.

Similarities between these and all triangles are:They all have 3 sides and 3 angles. The sum of the three angles adds up to 180Â°.An acute angle is less than 90 degrees. An acute triangle has all three sides are acute.An obtuse angle is more than 90 degrees. An obtuse triangle has one angle which is obtuse, and because of the 180Â° rule above, the other two angles will be acute.So all triangles will have at least two acute angles.

If the 2 triangles are right triangles, which are congruent to slicing the rectangle on the diagonal, then arrange one on top of the rectangle, and the other to the side, so that the two hypotenuses are in line with each other. This will make a bigger right triangle, which is similar to the smaller right triangles - each side is double of the smaller triangles.

There are many kind of triangles. These are the following: Acute, Right, and Obtuse are actual angles. Scalene, Isosceles, and Equilateral are all actual triangles. But, you can have any triangle with any angle. Like a scalene triangle with a Right angle, or an Isosceles triangle with an Obtuse angle.Acute is a triangle with an angle less than 90 degrees. So it is smaller than a Right triangle. To make and Acute triangle, you need at least two Acute angles.Right triangle have at least on right angle. Right angles are angles that re exactly 90 degrees. If you put a cube right where the angle went, both sides would be perfectly straight.Obtuse triangles are triangles with at least one Obtuse angles. They are always bigger than 90 degrees. They are larger than a Right triangle. If you spread your legs apart, you would have an Obtuse angle.Scalene triangles are triangles with all of the sides different lengths. Each side is either longer or shorter, they are never the same.Isosceles triangles are triangles with two sides the same lengths. The other side is either longer or shorter.Equilateral triangles are triangles with ever side the same exact length. They all are exactly the same. If one is different, it's not an Equilateral triangle.

No, scalene triangles can be obtuse, right or acute triangles. A 3 - 4 -5 right triangle (lengths of the sides) is one example of a right-scalene triangle. In fact, with the exception of the [45°, 45°, 90°] right triangle (which is isosceles) all other right triangles are scalene.

Yes and their other two angles are acute angles.

Infinitely many can be made. With one angle 60°, that leaves 180° - 60° = 120° as the sum of the other two angles. An obtuse angle is one greater than 90° and less than 180°. Thus as long as one of the other angles is greater than 90° and less than 120°, the other will be 120° less it. Some possible other angles: 100° and 20° 100.5° and 19.5° 100.05° and 19.95° 100.025° and 19.975° There are infinitely many numbers between 100 and 101, therefore there are infinitely many pairs of number whose sum is 120 where one of them lies between 100 and 101 (inclusive, or exclusive - it matter not which). ------------------------------------------ If you meant triangles with angles which are WHOLE numbers, then there are: Smallest obtuse angle = 91° Largest obtuse angle = 119° → there are 119 - 91 + 1 = 29 such triangles.

They are as follows:- 1 Triangles are 2 dimensional polygon shapes 2 Triangles have 3 sides 3 Triangles may have acute angles greater than 0 but less than 90 degrees 4 Triangles may have right angles which are 90 degrees 5 Triangles may have obtuse angles greater than 90 but less than 180 degrees 6 Triangles have 3 interior angles that add up to 180 degrees 7 Triangles have 3 exterior angles that add up to 360 degrees 8 Triangles can be scalene which have 3 acute angles 9 Triangles can be right angled with a 90 degree angle and 2 acute angles 10 Triangles can be obtuse with 1 obtuse angle and 2 acute angles 11 Triangles can be isosceles with 2 equal angles and another angle 12 Triangles can be equilateral with 3 equal angles of 60 degrees 13 Triangles have no diagonals 14 Triangles will tessellate 15 Triangles have lines of symmetry when they are isosceles or equilateral 16 Triangles have perimeters which is the sum of their 3 sides 17 Triangles have areas which is 0.5*base*altitude 18 Triangles can be used with Pythagoras' theorem if they are right angled 19 Triangles can be used in conjunction with trigonometry 20 Triangles are found in all other polygons 21 Triangles and their properties were known by the ancient Greeks 22 Triangles can be made into musical instruments