## What is an acute angle

Definition of an acute angle : In Geometry, mainly there are three angles – Acu angle (acute angle), right angle and obtuse angle. An angle that measures greater than 0 degrees and less than 90 degrees known as acute angle. In simpler terms, we can say that any angle that is smaller than 90 degrees but larger than 0 degrees called acute angle.

### Formation of Acu (acute) angle

Do you know how angle is formed ? : Let me explain it – In above diagram there are two lines or line segments. First one Line 1 = AC and Second one Line 2 = AB

Meeting point or common point of two lines known as vertex of an angle. In above example, Line 1 and Line 2 meeting at point A and forming an angle. In geometry, we denote an angle through ∠ symbol. It is measured in degrees.

In above image, ∠CAB = ∠BAC = acu (acute) angle because its greater than 0 degree and less than 90 degree.

### Examples of Acute angle

First we have to understand the definition of a acute angle then we will learn it through examples. Any angle that is smaller than 90 degrees but larger than 0 degrees called acu (acute) angle.

In below image, there are six diagrams – Each diagram represents an angle. ∠45*°*, ∠68*°*, ∠61*°*, ∠57*°*, ∠47*°*, ∠20*°* all are smaller than 90 degrees but larger than 0 degrees so we can say that all of these represent an acute angle.

### An Acute Triangle

How many acute angles are in an acute triangle : First we have to understand the definition of acute triangle. When all the three internal angles of a triangle are greater than 0 degree and less than 90 degrees called acute angled triangle. The total of the interior angles (Sum of all three internal angles) equals 180 degrees.

In a **scalene acute triangle**, all three sides have different lengths, and all angles are less than 90 degrees (90*°*).

An** isosceles acute triangle** has two sides of equal length and two angles of equal measure, both less than 90 degrees (90*°*).

### FAQs about Acu Angle

**Q. What are 3 acute angles?**

**A.** Any angle that is smaller than 90 degrees but larger than 0 degrees called acute angle. So ∠30*°*, ∠45*°*, ∠60*°*, ∠85*°* all are examples of acute angle.

**Q. Is an acute angle 90 degrees?**

**A.** Actually, an acute angle definition it should be less than 90 degrees. It falls between 0 degrees and 90 degrees. An angle measures less than a right angle, which is exactly 90 degrees.

**Q. Do acute triangles add up to 180?**

**A.** The total of the interior angles (Sum of all three internal angles) equals 180 degrees. Each internal angle must be less than 90 degrees and greater than 0 degree.

**Q. Is a 20 degree angle acute or obtuse?**

**A.** Acute Angle.

**Q. What is an acute triangle?**

**A. **When all the three internal angles of a triangle are greater than 0 degree and less than 90 degrees called acute angled triangle.

**Q. Is pizza an acute triangle?**

**A.** No, pizza is not an acute triangle. Pizza typically comes in a circular shape, so it doesn’t fit the definition of a triangle at all. But If a pizza is divided into 6 or more slices in triangle shape, each slice of pizza would resemble an acute triangle.

**Q. What is acute triangle class 8?**

**A.** Any angle that is smaller than 90 degrees but larger than 0 degrees called acute angle. So ∠28*°*, ∠35*°*, ∠65*°*, ∠87*°* all are examples of acute angle.

**Q. What is acute angle triangle Class 7?**

**A.** When all the three internal angles of a triangle are greater than 0 degree and less than 90 degrees called acute angled triangle.

**Q. What is acute angle triangle class 6?**

**A.** An acute-angled triangle is formed when all three of its internal angles measure between 0 and 90 degrees.

**Q. What is an acute angle for kids?**

**A.** Any angle that is smaller than 90 degrees but larger than 0 degrees called acute angle. So ∠20*°*, ∠35*°*, ∠50*°*, ∠75*°* all are examples of acute angle.