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Mattea was asked to find the measure of an interior angle of a regular octagon.

Mattea’s work is shown below.

Steps
Mattea’s Work
Step 1
(n minus 2) 180 degrees = (9 minus 2) 180 degrees
Step 2
7 (180 degrees) = 1260 degrees
Step 3
1260 degrees divided by 8 = 157.5 degrees

Where, if at all, did Mattea first make a mistake finding the measure of an interior angle?
step 1
step 2
step 3
Mattea did not make a mistake.

User MMH
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2 Answers

7 votes

Answer:

I guessed B, Tell me if I'm wrong by my Discord, 0_Wyvern#6048 .

Have a wonderful Day/Night!

User Morten Jacobsen
by
8.1k points
11 votes

Answer:

the answer is B!

Explanation:

I just took the quiz

User Adnan Mulla
by
7.9k points
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