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Step-2

Title: Angles

Grade: 4-a Lesson: S3-L1

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Identify the type of angle.
2	Step	The given image shows the right angle.
3	Step	A right angle is an angle that is exactly equal to 90 degrees.
4	Hint	Right angle is nothing but 90°.
5	Step	Compare the given options with the definition of a right angle.
6	Step	So the given image is a right angle.
7	Sumup	Can you summarize what you’ve understood in the above steps?
8	Choice.A	This is incorrect because the angle measured more than 90 degrees is called an obtuse angle	Obtuse angle
9	Choice.B	This is correct because a right angle is an angle that is exactly equal to 90 degrees	Right angle
10	Choice.C	This is incorrect because the angle measured less than 90 degrees is called an acute angle	Acute angle
11	Choice.D	This is incorrect because it includes all three types of angles: obtuse, right, and acute	All the above
12	Answer	Option	B
13	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Identify the type of angle.

Step

The given image shows the right angle.

Step

A right angle is an angle that is exactly equal to 90 degrees.

Hint

Right angle is nothing but 90°.

Step

Compare the given options with the definition of a right angle.

Step

So the given image is a right angle.

Sumup

Can you summarize what you’ve understood in the above steps?

Choice.A

This is incorrect because the angle measured more than 90 degrees is called an obtuse angle

Obtuse angle

Choice.B

This is correct because a right angle is an angle that is exactly equal to 90 degrees

Right angle

Choice.C

This is incorrect because the angle measured less than 90 degrees is called an acute angle

Acute angle

Choice.D

This is incorrect because it includes all three types of angles: obtuse, right, and acute

All the above

Answer

Option

Sumup

Can you summarize what you’ve understood in the above steps?