What is an obtuse statement?

What is an obtuse statement?

not quick or alert in perception, feeling, or intellect; dull, blunt, unfeeling, tactless, insensitive: an obtuse statement made without considering its effect; slow, dim; boorish; indistinctly felt or perceived, as pain or sound.

What is an example of an obtuse triangle?

An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90° degrees. Here, the triangle ABC is an obtuse triangle, as ∠A measures more than 90 degrees. Since, ∠A is 120 degrees, the sum of ∠B and ∠C will be less than 90° degrees.

What does an obtuse shape look like?

An obtuse angle is any angle larger than 90 degrees and less than 180 degrees. In other words, if the angle formed where two line segments meet goes beyond a right angle, it’s obtuse. Think of it as a reclined car seat. Anything beyond that perfect upright, 90 degree position is obtuse.

How do you identify obtuse?

An obtuse angle has a measurement greater than 90 degrees but less than 180 degrees. However, A reflex angle measures more than 180 degrees but less than 360 degrees.

How do you know if an obtuse is acute or right?

An acute triangle has three angles that each measure less than 90 degrees. An obtuse triangle is a triangle with one angle that is greater than 90 degrees. A right triangle is a triangle with one 90 degree angle.

What type of angle is 163?

acute angle-an angle between 0 and 90 degrees. right angle-an 90 degree angle. obtuse angle-an angle between 90 and 180 degrees.

What does the word triangle mean?

1 : a flat geometric figure that has three sides and three angles. 2 : something that has three sides and three angles a triangle of land. 3 : a musical instrument made of a steel rod bent in the shape of a triangle with one open angle.

Which is best definition of a triangle?

In geometry, a triangle is a closed, two-dimensional shape with three straight sides. A triangle is also a polygon.

How do you introduce a triangle to students?

Introduction

  1. Call students to the rug, and instruct them to form a triangle with their fingers by joining pointer fingers and thumbs. Tell them to repeat after you, “Triangle.”
  2. Ask students to call out other shapes that they know, for example squares, circles and rectangles.

What is triangle and its types?

Triangles are shapes with three sides. A triangle’s type depends on the length of its sides and the size of its angles (corners). There are three types of triangle based on the length of the sides: equilateral, isosceles, and scalene. The green lines mark the sides of equal (the same) length.

What are the 3 types of triangle?

  • Acute triangle. An acute angle triangle is a triangle in which all three interior angles are less than 90 degrees.
  • Obtuse triangle. An obtuse triangle is a triangle in which one of the interior angles is more than 90 degrees.
  • Right Triangle.
  • Isosceles triangle.
  • Equilateral triangle.
  • Scalene Triangle.

What are the 3 properties of a triangle?

A triangle has three sides, three angles, and three vertices. The sum of all internal angles of a triangle is always equal to 1800. This is called the angle sum property of a triangle. The sum of the length of any two sides of a triangle is greater than the length of the third side.

What is S in properties of triangle?

1. The angles of the triangle ABC are denoted by A, B, C and the corresponding opposite sides by a, b, c. 2. s denotes the semi-perimeter of the triangle ABC, ∆ its area and R the radius of the circle circumscribing the triangle ABC i.e., R is the circum-radius.

How do you identify a triangle type?

  1. Acute Triangle: All angles are less than 90°.
  2. Obtuse Triangle: One angle is greater than 90°.
  3. Right Triangle: One angle is 90°.
  4. Equilateral Triangle: 3 equal sides. 3 equal angles.
  5. Isosceles Triangle: 2 equal sides. 2 equal angles.
  6. Scalene Triangle: No equal sides. No equal angles.

What is called isosceles triangle?

A triangle with two sides of equal length is an isosceles triangle. The two equal sides of an isosceles triangle are known as ‘legs’ whereas the third or unequal side is known as the ‘base’.

Which is the best definition of an isosceles triangle?

In geometry, an isosceles triangle is a triangle that has two sides of equal length. Sometimes it is specified as having exactly two sides of equal length, and sometimes as having at least two sides of equal length, the latter version thus including the equilateral triangle as a special case.

How does isosceles triangle look like?

An isosceles triangle has two equal sides (or three, technically) and two equal angles (or three, technically). The equal sides are called legs, and the third side is the base. The angle between the two legs is called the vertex angle. The above figure shows two isosceles triangles.

What is an obtuse isosceles triangle?

In an obtuse triangle, one angle is greater than a right angle? it is more than 90 degrees. An obtuse triangle may be isosceles or scalene. In an acute triangle, all angles are less than right angles? each one is less than 90 degrees.