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February 1, 2025Acute Angle: In Mathematics, two lines intersect at a point to form an angle. There many types of angles in Geometry such as Acute, Obtuse, Right, etc. The acute angle is the angle that is less than 90°. Polygons such as Triangle, Parallelogram, Trapezoid, etc. will have at least one acute angle.
On this page, we have provided all the necessary information on what is an acute angle along with definitions, formulas, and examples. Read on to find out more.
Acute Angle Definition: An angle that is less than 90° is known as an acute angle. The acute angle is otherwise called the angle which is less than the right angle. The acute angle is denoted by the symbol ‘∠’ and measured with the help of a protractor in terms of degree.
Acute Angle Examples: Few examples of acute angles in degrees are ∠80o, ∠55o, ∠70o, ∠25o, ∠83o, ∠89o, ∠15o, ∠12o, ∠28o.
A ∠45o acute angle can be sketched as follows:
Every angle has two components: Sides and Vertex. Similarly, the acute angle also has two components sides and vertex. The representation of the acute angle.
If the internal angles of a triangle are less than 90 degrees then it is known as an acute angle triangle. Equilateral triangles have acute angles.
A Parallelogram is nothing but a quadrilateral whose opposite sides are parallel and equal. Each and every parallelogram has two acute angles whose angle is less than 90 degrees.
Here ∠SPQ and ∠QRS are acute angles.
A Trapezoid is a parallelogram with a pair of opposite sides parallel to each other. Each trapezoid has 2 acute angles.
Here ∠DCB & ∠ADC are acute angles.
For an acute-angled triangle, the following holds good for the lengths of the sides:
q2 + p2 > r2 p2 + r2 > q2 r2 + q2 > p2 |
Where p, q, and r are the lengths of the sides.
The properties of acute angles are given below:
Few real-life examples of acute angles are given below:
Few solved questions on acute angles are given below:
Q.Which of the following is a possible acute angle measurement? Options: 90 degrees 45 degrees 180 degrees 360 degrees Answer: 45 degrees is an acute angle. |
Q. Which of the following letters contains an acute angle? Options: E F H V A. Letter “V” contains an acute angle. |
Q. Is 1 O’Clock an acute angle? A. Yes, 1 O’Clock is an acute angle. |
Q. What is an acute angle? A. An angle between 0 and 90 degrees is known as acute angles. |
Q. Is 0 degrees acute angle? A. Yes, 0 degree is acute angles. |
Q. Write 5 examples of acute angle degrees? A. The 5 examples of acute angles in degrees are ∠70o, ∠25o, ∠83o, ∠89o, ∠15. |
You can also make use of Class 6 Maths Practical Geometry NCERT Solutions which will be helpful in your exam preparation.
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We hope this detailed article on Acute Angle is helpful to you. If you have any queries related to this page, ping us through the comment section below and we will get back to you as soon as possible.
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