# RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1 (Updated For 2021-22)

RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1: Start your Class 7 Maths exam prep by solving the questions from RS Aggarwal Solutions Class 7 Maths. You can rely on RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1 for your class tests and assignments. All the solutions are accuarte, well-explained, credible and as per the current CBSE Syllabus, thanks to the subject matter experts.

## Download RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1 PDF

RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1

## RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1 – Overview

### Different Types of Triangles based on its Sides

There are three types of triangles:

• Equilateral
• Isosceles
• Scalene
1. Scalene Triangle

When there are no equal sides among the three sides of any triangle, it is a Scalene Triangle. It consists of all sides having different lengths along with different measures. It means that none of the sides will be equivalent to the other provided sides.

Hence, all the interior angels in the case of a Scalene Triangle will also be different, meaning that none of the angles is going to be the same as another angle.

2. Isosceles Triangle

When the two of the sides among the three sides are equal to each other, it is called an Isosceles Triangle. It also states that the angle which will be opposite to the equivalent sides will be equal to each other.

Equilateral Triangle

When all the three sides from the given triangle are equivalent to each other, it is called an Equilateral Triangle. Hence, the angle which will be opposite to the equivalent sides will be equal to each other. In the short, all the angles of the Equilateral triangle are equal to each other. Hence, the Equilateral Triangle has all three equal sides and three equal angles. Here, each angle will be of the measure 60 degrees.

### Types of Triangles Based on its Angles

There are 4 types of triangles based on its angles

• Acute Angled Triangles
• Obtuse Angled Triangles
• Right Angled Triangles
1. Acute Angled Triangles

The triangle consisting of all of its interior angles as less than  90 degrees. All the interior angles for this triangle will be less than 90 degrees.

2. Obtuse Angled Triangles

The triangle consisting of at least one of its interior angles is greater than 90 degrees. If one of the interior angles for this triangle is greater than 90 degrees then it will be an Obtuse Angled Triangle.

3. Right Triangle

The triangle consisting of at least one angle as 90 degrees. The said that will be opposite to this angle will be considered the largest side among all. We call this side the ‘Hypotenuse’.

4. Right isosceles triangle

It states that in any given triangle, the two sides will be equivalent to each other and one of the interior angles will be equal to 90 degrees.

This is the complete blog on RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1. To know more about the CBSE Class 7 Maths exam, ask in the comments.

## FAQs on RS Aggarwal Solutions Class 7 Maths Chapter 15 Ex 15.1

### Define an acute-angled triangle.

The triangle consists of all of its interior angles as less than 90 degrees is an acute-angled triangle. All the interior angles for this triangle will be less than 90 degrees.

### What is an Equilateral Triangle?

When all the three sides from the given triangle are equivalent to each other, it is called an Equilateral Triangle. Hence, the angle which will be opposite to the equivalent sides will be equal to each other. In the short, all the angles of the Equilateral triangle are equal to each other. Hence, the Equilateral Triangle has all three equal sides and three equal angles. Here, each angle will be of the measure 60 degrees.

### What is an Isosceles Triangle?

When the two of the sides among the three sides are equal to each other, it is called an Isosceles Triangle. It also states that the angle which will be opposite to the equivalent sides will be equal to each other.