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Please help as soon as possible

Please help as soon as possible-example-1
User T J
by
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2 Answers

5 votes

Explanation:

we know all 3 values of trapezium length. so let's find out the circumference of half circle

circumference of circle= 2pi r

circumference of half circle = (180/360)× 2pi r

therefore it's equal to pi r

circumference = 22/7 ×2 (diameter is 4 so radius is 2)

circumference of half circle = 44/7

Total perimeter of the figure= 8+6+6+(44/7)

=20 + 6.28

= 26.28

Round of to nearest tenth place = 26.3

User Mircea Voivod
by
7.5k points
1 vote

Answer:

26.28

Explanation:

First, add the side lengths of what you know. 6 + 6 + 8 = 20.

Then, find the circumference of the circle, BUT make sure you divide it by 2 because it is a semicircle in the figure.

The formula is 2
\pir, so plug in the radius = 2

So the circumference is 4
\pi, then divide by 2 to get 2

20 + 2
\pi = 26.28

User Donmelchior
by
7.6k points