Can an obtuse angle triangle be an isosceles triangle?

An obtuse triangle can either be a scalene triangle or an isosceles triangle, but it cannot be an equilateral triangle. An equilateral triangle has equal sides and each angle measures 60°.

Can an obtuse triangle be congruent to an isosceles triangle?

Yes, an obtuse triangle can be isosceles.

What does an obtuse isosceles triangle add up to?

Because the interior angles of a triangle add up to 180°, we can create an equation using the variables given in the problem: x+2x+(3x+30)=180. This simplifies to 6X+30=180.

What is in obtuse angle?

Obtuse angles measure more than 90 degrees.

Can a triangle be obtuse and equilateral?

An equilateral triangle can never be obtuse. Since an equilateral triangle has equal sides and angles, each angle measures 60°, which is acute. Therefore, an equilateral angle can never be obtuse-angled. A triangle cannot be right-angled and obtuse angled at the same time.

What is the relationship between acute and isosceles triangle?

Let us recap the meaning of isosceles triangles and acute triangles. An isosceles triangle is one in which any two angles of the triangle are equal in measurement. And the two sides opposite to those equal angles are also equal in length. An acute triangle is one in which all three angles measure less than 90 degrees.

Why is an isosceles triangle is acute?

Every isosceles triangle has an axis of symmetry along the perpendicular bisector of its base. The two angles opposite the legs are equal and are always acute, so the classification of the triangle as acute, right, or obtuse depends only on the angle between its two legs.

What is a triangle with no sides the same?

Scalene. A scalene triangle has three different angles and none of its sides are equal in length.

What triangle can be obtuse?

An obtuse-angled triangle can be a scalene triangle or isosceles triangle but will never be equilateral since an equilateral triangle has equal sides and angles where each angle measures 60°.

What is the difference between an acute isosceles triangle and an obtuse isosceles triangle?

What is the difference between acute right and obtuse triangles?

A right triangle has one angle that’s 90° and a corner that looks like an L. Obtuse triangles have one angle that’s greater than 90°. In acute triangles, all the angles are less than 90°.

What does an obtuse angle look like?

What does an Obtuse Angle Look Like? The angles measuring greater than 90° and less than 180° are called obtuse angles in geometry. The obtuse angle lies between 90° and 180° and looks like a reclined chair, an angle below the staircase, or an angle formed between a minute and an hour hand of a clock at 10:15 AM.

Can an obtuse triangle be regular?

An obtuse triangle can never be regular. An obtuse triangle is a triangle that contains at least one obtuse angle. An obtuse angle is any angle that measures greater than 90 degrees. … Unless all three angles are congruent, the triangle cannot be a regular triangle.

How do you make a triangle obtuse?

Construction
  1. Draw a horizontal line segment from point to by a ruler. …
  2. Use protractor and mark a point at an obtuse angle. …
  3. Take a compass and set it to any length by a ruler. …
  4. Finally, join the points and by a line for completing the construction of a triangle geometrically.