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Two. Two of the angles are the same and one of them is different to the other two.
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Classify the triangle by its angles and by its sides?
All angles equal = all sides equal = equilateral. Two angles equal = two sides equal = isosceles. All angles different = all sides different = scalene. An isosceles or scalene triangle may be right-angled or obtuse-angled if one of its angles is a right angle or obtuse angle (respectively).
What is a triangle with no right angles?
Equilateral Triangles do not contain right angles, since all angles in this shape are equal and it is impossible to make a triangle that consists of three 90 degress angles. Isosceles and Scalene may contain a right angle.
Can a right angled triangle sometimes be a equilateral triangle?
No, since an equilateral triangle has three congruent angles of 60 degrees, and a right triangle must have an angle of 90 degrees. However, a right triangle may be an isosceles triangle.
What kind of triangle has no equal sides or angles?
This is a SCALENE triangle. There several types of triangle; Equilateral ; The three sides are the same length and the three angles are ALL 60 degrees. All angles are ACUTE Isosceles ; Two sides are the same length , and two angles have the same degree value. . May be ACUTE or OBTUSE. Right angled ; The three sides may vary in length, but ONE angle is 90 degrees. Is ACUTE, and maybe ISOSCELES. Scalene ; All three sides are of different length, and all three angles have different degree value. May be ACUTE or OBTUSE. Fort ALL triangles , of whatever shape, the sum of the interior angles is ALWAYS 180 degrees.
What is the difference between an obtuse scalene triangle and an acute isosceles triangle?
The word 'Triangle' means 'three angles' more archaicly, a 'trigon'. It is also a collective noun for different shapes of triangles. OBTUSE ; one of the angles in a triangle is greater than 90 degrees. By summation it means the other two angles musr be less than 90 degrees, SCALENE ; All the sides and all the angles are different. This type of triangle my exhibit obtuse characteristics. ACUTE ISOSCELES ; All the angles are less than 90 degrees. Two of the three angles are the same size, and two of the three sides are the same length. NB It is possible to have an OBTUSE Isosceles. triangle. There is a fourth type of triangle, which is a 'RIGHT ANGLED' triangle. In this case one angle is 90 degrees. This type of triangle may be ISOSCELES or SCALENE. NB For ALL triangles, drawn on a plane surface, the sum of the interior angles is ALWAYS 180 degrees. However, for triangles drawen on a curved surface; a sphere , the EARTH, the sum of the interior angles may add up to 360 degrees.
Is a acute triangle an isosceles?
If it has 2 equal acute angles and 1 obtuse angle then it is an isosceles triangle.
Does an isosceles triangle have a right angle in it?
An isosceles triangle may have a right angle, but a right angle is not a requirement of all isosceles triangles.
How many equal sides does an obtuse triangle have?
None normally but if it is in the shape of an isosceles triangle then it will have 2 equal sides.
How do you determine that an isosceles triangle is an isosceles right triangle?
If the non-right angles are 45 degrees each. or If the sides adjacent to the right angle are equal. There are other properties that may be used instead. For example, the perpendicualr bisector of the hypotenuse bisects the right angle of the triangle.
Is it true or false that an isosceles triangle may have a right angle?
It is true.
Classify the triangle by its angles and by its sides?
All angles equal = all sides equal = equilateral. Two angles equal = two sides equal = isosceles. All angles different = all sides different = scalene. An isosceles or scalene triangle may be right-angled or obtuse-angled if one of its angles is a right angle or obtuse angle (respectively).
What type of triangle is ABC?
You must have more information about the triangle. If you know the angles, and two of them are equal, it is an isosceles triangle. If all three of the angles are sixty-degrees, it is an equilateral triangle. If none of the angles are the same, it is a scalene triangle. If one of the angles is ninety degrees, it is a right triangle (right triangles may also be scalene or isosceles). If you know the side lengths and two of them are equal, it is isosceles. If they are all equal, it is equilateral. If none of them are equal, it is scalene. A scalene or isosceles triangle may also be a right triangle, which you could determine from side lengths using the pythagorean theorem.
A triangle with side lengths of a b and c is which type of triangle?
You must have more information to determine what type of triangle it is. If two of the lengths are equal, it is isosceles. If all three of the lengths are equal, it is equilateral. If none of them are equal, it is scalene. It may also be a right triangle if it is isosceles or scalene.
What are the types of triangle in geometry?
The 4 types of triangles in Geometry are Isosceles, Equilateral, right angled and Scalene. A Scalene triangle will have no equal sides and no equal angles. An Isosceles triangle will have 2 sides that are of equal length and 2 angles of equal degrees. An Equilateral triangle will have all 3 sides being the same length and all angles will be of the same degrees (60 degrees). A right angled or right triangle has a 90 degree angle.
Why is it an isosceles triangle?
When a triangle has 2 sides that are equal in length it is isosceles from Latin and Greek words. Isosceles may also be a mathematical geometric shape with at least 2 sides having the same length.
Example of scalene triangle?
A triangle with side lengths 1, 2, square root(3). A scalene triangle is any triangle whose sides are all of different lengths. It may or may not have a right-angle. Compare with isosceles triangles (2 out of 3 sides are equal in length) and equilateral triangles (all 3 sides are equal in length).
Can you draw a right and isosceles triangle?
You may be asking whether it's possible to have an isosceles triangle that's also a right triangle. If that's your question, then the answer is yes. The 'legs' of the right triangle are equal, each acute angle is 45 degrees, and the length of the hypotenuse is (length of each leg) x sqrt(2). If that's not what you're asking, then your question is incomprehensible.
