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Step-5

Title: Angles

Grade: 6-a Lesson: S2-L3

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Find the missing angles.
2	Step	The given angle is 68°.
3	Step	Opposite angles are equal.
4	Step	Sum of complete angles are 360°.
5	Step	Now we have to find remaining angles	⇒ 68° + 68° = 136° ⇒ 360° - 136° = 224° ⇒ \$(224°)/2 = 112°\$
6	Step	The remaining angle is 112°.
7	SumUp	Can you summarize what you’ve understood in the above steps?
8	Choice.A	This is incorrect, as the third angle should be 112°, not 102°	60°, 102°, and 112°
9	Choice.B	This is correct, as the third angle is 112°	68°, 112°, and 112°
10	Choice.C	This is incorrect, as the third angle should be 112°, not 120°	68°, 112°, and 120°
11	Choice.D	This is incorrect, as the given angles are not 86° and 68°	86°, 112°, and 112°
12	Answer	Option	B
13	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the missing angles.

Step

The given angle is 68°.

Step

Opposite angles are equal.

Step

Sum of complete angles are 360°.

Step

Now we have to find remaining angles

⇒ 68° + 68° = 136°

⇒ 360° - 136° = 224°

⇒ \$(224°)/2 = 112°\$

Step

The remaining angle is 112°.

SumUp

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

Choice.A

This is incorrect, as the third angle should be 112°, not 102°

60°, 102°, and 112°

Choice.B

This is correct, as the third angle is 112°

68°, 112°, and 112°

Choice.C

This is incorrect, as the third angle should be 112°, not 120°

68°, 112°, and 120°

Choice.D

This is incorrect, as the given angles are not 86° and 68°

86°, 112°, and 112°

Answer

Option

SumUp

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