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To find the perimeter of a semicircle, you need to add the curved edge (half the circumference of a full circle) to the diameter of the semicircle. The formula for the circumference of a full circle is C = πd, where d is the diameter. Therefore, the circumference of the full circle is π(8) = 8π cm. The perimeter of the semicircle would be half of the circumference of the full circle plus the diameter, so it would be 4π + 8 cm, or approximately 20.28 cm.

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ProfBot

1mo ago
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Taif AL Hashmi

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10mo ago

What is the perimeter of a three Quarter with 3m radius

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Wiki User

12y ago

Use the circumference formula of C=π x d

π=3.14

C=3.14 x 8cm

C=25.1cm

Divide by 2 for the semicircle 12.5

Add the diameter (8cm) 12.55+8=20.5

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Q: What is the perimeter of a semicircle if the diameter is 8cm?
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What is the perimeter of a 8cm semicircle?

8*pi + 16 = 41.13 cm (approx)It depends on whether 8 cm is the radius or diameter of the semicircle.


What is the perimeter of a semicircle with radius 8cm?

A semicircle is half a circle. So the perimeter of a semicircle is half the circumference of the whole circle plus the diameter, which is twice the radius: perimeter = 1/2 x 2{pi}r + 2r perimeter ~= 3.14x8 + 2x8 ~= 41.13cm


Perimeter of a semicircle when the Diameter is 8?

Perimeter of a semicircle is the length of the half-circle plus the diameter. The whole circle would have a length of diameter times pi, but since it's only half... Perimeter of semicircle = (1/2*pi*D) + D


If the base of a semicircle is a feet What is its perimeter?

The circumference of a circle = 2π r = π a (where a is the base of the semicircle and is also the diameter of the circle) The perimeter of the semicircle = half the perimeter of the circle + the base length The perimeter of the semicircle = πa/2 + a = a(1 + π /2) feet


What is the perimeter of a semicircle that is 5 inches?

The answer will depend on what measure of the semicircle is 5 inches: its radius or diameter.


How do you find the perimeter of a shape that has a semicircle?

To find the perimeter of the curved section of the semi-circle: Perimeter of semicircle = Pi x radius If you also need to the find the perimeter of the straight part of the semicircle (the diameter), it is simply double the radius.


How do we find a perimeter of a semicircle?

It is its diameter plus half of its circumference


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If you are given the diameter 'D' of the circle: the full circumference is (pi times D) the perimeter of the semicircle is half this plus the diameter Therefore: Pi x D /2 + D


If a diameter of the semicircle is 14cmfind its perimeter?

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What is the circumference of 52 m semicircle?

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If diameter is 7 find perimeter of semi circle?

Pi times the diameter gives you the circumference. Then divide that answer by two. Then add in the diameter - and, voila, you have your answer as to the perimeter of a semicircle.


How do you find the perimeter of a semicircle if its diameter is 45 cm?

Perimeter of the semicircle including its base: 180/360*pi*45+45 = 115.686 cm rounded to 3 decimal places