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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?

Mathematics

1 answer:

Lostsunrise [7]2 years ago

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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Juli2301 [7.4K]

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Step-by-step explanation:

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2 years ago

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Pepsi [2]

Answer:

6) f=45

7) r=57

Step-by-step explanation:

the angles of a triangle will always add up to 180 degrees. Therefore, for the first one the three inside angles have to be 30, 15, and 135. If 135 is the supplementary angle to f, 45 must be the degree of f.

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3 years ago

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andreyandreev [35.5K]

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Step-by-step explanation:

She finds her average resting heart rate to be 62 after 5 days.

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Let x be her pulse on the other days,

Then,

$Average, 62=\dfrac{58+4x}{5}\\\text{Cross Multiply}\\58+4x=62 X 5\\\text{Suntract 58 from both sides}\\4x=(62X5)-58\\4x=310-58\\4x=252\\\text{Divide both sides by 4}\\x=63$

Her pulse on all the other days is 63.

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3 years ago

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Anit [1.1K]

Answer:4 is your answer

Step-by-step explanation:

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3 years ago

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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?​

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