2 years ago

A student finds the sum of the angle measures in an octagon by multiplying 7 • 180°. What is the student's error?

1 answer:

7 0

The student should compute 6*180 = 1080 because of the formula

S = 180(n-2)

We have n = 8 sides which leads the n-2 part to become n-2 = 8-2 = 6

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A student finds the sum of the angle measures in an octagon by multiplying 7 • 180°. What is the student's error?​