When it comes to measuring angles, understanding protractors can be really helpful.

There are four main types of angles you’ll come across, and each one is a bit different. Let’s break them down:

1. Acute Angle:

   • This angle is less than 90 degrees.
   • Picture a slice of pizza that’s really pointy.
   • When you use a protractor, an acute angle will be in the first part of the protractor and will be smaller than the right angle mark.

2. Right Angle:

   • A right angle is exactly 90 degrees.
   • You find this angle in the corners of squares or rectangles.
   • It’s easy to spot with a protractor because there’s a special mark for 90 degrees that looks like a perfect L shape.

3. Obtuse Angle:

   • An obtuse angle is bigger than 90 degrees but less than 180 degrees.
   • Think of a wide slice of cake!
   • You can find this angle on a protractor by seeing it go past the right angle mark but not reach the 180-degree line.

4. Straight Angle:

   • This angle is simply 180 degrees and looks like a straight line.
   • It’s similar to a flat pancake!
   • When you measure it with a protractor, the line goes all the way across to the 180-degree mark.

How to Use a Protractor:

Now, let’s see how to use a protractor to measure angles. Here are some easy steps:

• Step 1: Place the center of the protractor (the small hole in the middle) right on the point where the two lines of the angle meet (this is called the vertex).

• Step 2: Line up one side of the angle with the bottom line of the protractor.

• Step 3: Check the numbers on the protractor. There are usually two sets of numbers. Depending on the direction your angle opens, use either the inner or outer set of numbers.

• Step 4: Find where the other side of the angle crosses the numbers, and there you have it! You’ve measured your angle.

Measuring angles can be really fun! Once you get the hang of it, you’ll start seeing different types of angles all around you in everyday life. Happy measuring!