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Earn +20 ptsQ: What is the area of a semicircle if the diameter is 8 cm?
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Area of a semicircle with a diameter of 8 cm?
25
What is the perimeter of a semicircle if the diameter is 8cm?
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.
If the radius of a circle is 4 cm what is the diameter?
Diameter: 2*4 = 8 cm
What is the diameter of a circle 8 cm rounded to the nearest tenth?
8.0
What is the circumference of a circle with diameter of 8 cm?
Its circumference is: 8*pi cm
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