Common-Core/ Grade 9
Maths MCQ Based On Calculate area perimeter radius and diameter for semicircles
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Common-Core Grade 9 - 9 Calculate area perimeter radius and diameter for semicircles
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Area of the semi circle:
Perimeter of the semi circle:
Area of the semi circle can be found using the following formula:
Remember to do the appropriate unit conversions.
Find the areas of the bigger semicircle and the smaller semicircle separately.
The circumference of a semicircle is half the circumference of the corresponding full circle.
The formula for the perimeter of a semicircle is P = (π * d) / 2 + d.
Half of a circle is a semicircle.
The radius of a full circle is half the diameter.
Use the formula of the area of a semicircle to find the radius first.
Recall the formula for the perimeter of a semicircle.
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