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Lesson Example Discussion Quiz: Class Homework

Step-4

Title: Angles

Grade: 6-a Lesson: S4-L3

Explanation: Let us verify the answer here with the steps.

Lesson Steps Head1

Step	Type	Explanation	Answer
1	Problem	My friend made 4 half-circle turns in the same direction to occupy himself. Then he turned 2 right angles in the opposite direction to what degree did my friend end up?
2	Step	Number of half - circles	4
3	Step	A half-circle turn is equivalent to 180°.
4	Step	When your friend made 4 half-circle turns in the same direction, he completed:	\$4 \times 180° = 720°\$
5	Step	Turning 2 right angles in the opposite direction	\$2 \times 90 "opposite"\$ = -180°.
6	Hint	To find out where your friend ended up in terms of degrees, you can add the degrees he gained and lost:
7	Step	Problem	720° - 180° = 540°
8	Step	My friend ended up at 540°.
9		Answer	B

Step

Type

Explanation

Answer

Problem

My friend made 4 half-circle turns in the same direction to occupy himself. Then he turned 2 right angles in the opposite direction to what degree did my friend end up?

Step

Number of half - circles

Step

A half-circle turn is equivalent to 180°.

Step

When your friend made 4 half-circle turns in the same direction, he completed:

\$4 \times 180° = 720°\$

Step

Turning 2 right angles in the opposite direction

\$2 \times 90 "opposite"\$ = -180°.

Hint

To find out where your friend ended up in terms of degrees, you can add the degrees he gained and lost:

Step

Problem

720° - 180° = 540°

Step

My friend ended up at 540°.

Answer