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Subjects>Math>Geometry

What is the perimiter of a semi circle if the radius is 18cm?

Anonymous

∙ 12y ago

Updated: 4/28/2022

The perimeter is pi*r + 2r = 92.6 cm

Wiki User

∙ 12y ago

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Q: What is the perimiter of a semi circle if the radius is 18cm?

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Continue Learning about Geometry

What is the radius if a semi-circle has a perimeter of 25.71cm?

The radius is 5.00 cm.

What are the parts of a circle?

A part of a circle is called an arc. The defined values for a circle are: radius, diameter, chord, area, circumference, and the arcs. There is the circumfrence, semi circle, arc, diameter,chord,segment,radius,quaderent

How do you find the circumference of a semi-circle?

The length (circumference) of the curved part of a semi-circle is pi times the radius (pi*R). If the diameter is given, then the semi-circle length is 1/2 (pi * x D) because the radius is 1/2 of the diameter.(There are 2pi radians in a full circle.)A closed shape formed from a semi-circle has a perimeter P = D + (pi * D / 2)(diameter plus the curved part)

What is the area of a semi-circle with a radius of 11cm?

It is 1/2*pi*r2 = 190.1 cm2

How do you find the area of a semi-circle in terms of pi?

The area of a full circle is pi x R squared where R = RADIUS The area of a semi circle is half of that, or pi x R squared/2

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