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3 years ago

What is the measure of an exterior angle of a regular nonagon

Mathematics

1 answer:

Tanzania [10]3 years ago

7 0

A regular nonagon is 9-sided polygon with all congruent sides and congruent interior angles.

The sum of exterior angles of n-sided polygon is 360°. If all interior angles of regular nonagon are congruent, then all exterior angles are congruent too.

Then each exterior angle has the measure of

$\dfrac{360^{\circ}}{9}=40^{\circ}.$

Answer: $40^{\circ}$

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2 years ago

Pete, Lulu and Liza are walking in the Boston downtown. Each time Pete takes 4

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If Liza takes 120 steps, then the number of steps taken by Pete will be 72.

<h3>What are a ratio and a proportion?</h3>

A ratio is an ordered set of integers a and b expressed as a/b, with b never equaling 0. A percentage is a mathematical expression in which two things are equal.

Pete, Lulu, and Liza are walking in the Boston downtown. Each time Pete takes 4 steps, Lulu takes 3 steps. Each time Lulu takes 5 steps, Liza takes 4 steps.

Then the relation between is given as

4 Pete → 4 Lulu

5 Lulu → 4 Liza

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More about the ratio and the proportion link is given below.

brainly.com/question/14335762

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1 year ago

I need the answer. Please help.

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<h3>Answer: 1.8</h3>

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Work Shown:

Use the tangent ratio

tan(angle) = opposite/adjacent

tan(B) = AC/AB

tan(61) = AC/1

tan(61) = AC

AC = tan(61)

AC = 1.80404775527142

AC = 1.8

The river is about 1.8 miles wide between points A and C.

Make sure your calculator is in degree mode. One way to check is to type in tan(45) and you should get 1.

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2 years ago