Step-1

Title: Angles

Grade: 4-a Lesson: S3-L2

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

Lesson Steps

Step Type Explanation Answer

1

Problem

Find the value of the missing angles.(45°)

2

Step

The given angle

angle = 45°

3

Step

Find the missing angle

x = 90 - 45

4

Step

After simplification

x = 45°

5

Step

So the missing angle is 45°

6

Sumup

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

7

Choice.A

This is not correct because they do not match the calculated value of 45°

40°

8

Choice.B

This is not correct because they do not match the calculated value of 45°

43°

9

Choice.C

This is correct because it matches the correctly calculated value for the missing angle

45°

10

Choice.D

This is not correct because they do not match the calculated value of 45°

41°

11

Answer

Option

C

12

Sumup

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


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