Obtuse Angle Parallelogram

An obtuse angle within a parallelogram refers to an angle within the shape that measures more than 90° but less than 180°. In a parallelogram, the opposite angles are equal, which means that if one angle is obtuse, its opposite angle across the parallelogram will also be obtuse and congruent in measurement.

This characteristic is consistent with the properties of parallelograms where opposite angles are equal and the sum of adjacent angles is always 180°.

Obtuse Angle

Obtuse Angle is a type of angle that is more than a right angle (90°) but less than a straight angle (180°). Unlike acute angles, which are smaller than 90° and right angles, which measure exactly 90°, an obtuse angle exhibits an opening wider than a right angle.

Consider a corner, then imagine one side moving away from the other, making the angle wider. It’s not wide enough to form a straight line, but wider than a right angle. In this article, we will be discussing all the things related to Obtuse Angle including example formula as well it’s comparison with acute and right angle as well.

Table of Content

  • What is an obtuse angle?
  • Obtuse Angle Degree
  • Obtuse Angle Triangle
  • Obtuse Angle Parallelogram
  • Right Acute Obtuse Angle

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What is an Obtuse Angle?

An obtuse angle is a type of angle in geometry that measures more than 90° but less than 180°. Visually, it appears wider than a right angle (90°) but narrower than a straight angle (180°). In simpler terms, an obtuse angle is “more open” than a right angle....

Obtuse Angle Example

An obtuse angle, typically found in triangles and those triangles are called obtuse-angled triangle. For instance, if one angle within a triangle measures 120° it indicates an angle that surpasses the 90° threshold yet doesn’t extend to the full 180°. This scenario illustrates an obtuse angle within the triangle, representing an angle greater than 90° but less than 180°....

Obtuse Angle Triangle

A Triangle whose one of the angle is greater than 90° but less than 180° is called Obtuse Angled Triangle. In a triangle we can have only one obtuse angle....

Obtuse Angle Parallelogram

An obtuse angle within a parallelogram refers to an angle within the shape that measures more than 90° but less than 180°. In a parallelogram, the opposite angles are equal, which means that if one angle is obtuse, its opposite angle across the parallelogram will also be obtuse and congruent in measurement....

Right, Acute, Obtuse Angle

The angle less than 90° is called acute angle. The angle equals to 90° is called right angle. The angle greater than 90° and less than 180° is called obtuse angle....

Solved Examples on Obtuse Angle

Example 1: In triangle PQR, if angle P measures 60° and angle Q measures 45°, determine the measure of angle R....

Obtuse Angle – Practice Questions

Q1: Identify an obtuse angle in your surroundings and measure its approximate degree....

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