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30 Dec 2020, 21:00
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
97% (00:40) correct
3%
(01:13)
wrong
based on 32
sessions
History
Date
Time
Result
Not Attempted Yet
The figure below is a regular octagon. What is the combined measure of all of the indicated angles?
(A) 720°
(B) 960°
(C) 1,080°
(D) 1,220°
(E) 1,440°
Attachment:
2020-12-30_20-51-07.png [ 14.76 KiB | Viewed 2377 times ]
30 Dec 2020, 23:10
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Formula;
\(θ^{\circ}=\frac{(n-2)*180^{\circ}}{n}\)
\(Sum = \frac{(n-2)*180^{\circ}}{n}*n\)
\(Sum=(8-2)*180^{\circ}=6*180^{\circ}=1080^{\circ}\)
Ans C
\(θ^{\circ}=\frac{(n-2)*180^{\circ}}{n}\)
\(Sum = \frac{(n-2)*180^{\circ}}{n}*n\)
\(Sum=(8-2)*180^{\circ}=6*180^{\circ}=1080^{\circ}\)
Ans C
31 Dec 2020, 07:16
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Given
To Find
Approach and Working Out
Correct Answer: Option C
- • The figure below is a regular octagon
To Find
- • The combined measure of all of the indicated angles.
Approach and Working Out
- • Sum of the angles of n sided polygon is (n – 2)×180 = 1080
Correct Answer: Option C
