3 years ago

What is the measure of an exterior angle of a regular 11-sided polygon?

Mathematics

1 answer:

m_a_m_a [10]3 years ago

3 0

360 divided by 11 = 32.72 recurring

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3 years ago

The lengths of the bases of the right trapezoid are 9 cm and 18 cm. The length of a longer leg is 15 cm. Find the area of the tr

finlep [7]

Firstly, we will draw figure

now, we will draw a altitude from B to DC that divides trapezium into rectangle and right triangle

because of opposite sides of rectangle ABMD are congruent

so,

DM=AB=9

CM=CD-DM

CM=18-9

CM=9

now, we can find BM by using Pythagoras theorem

$BM=\sqrt{BC^2-CM^2}$

now, we can plug values

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now, we can plug values

and we get

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