It is: pi*4^2 divided by 2 = 8/pi which is about 25 square cm
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.
8.0
Diameter: 2*4 = 8 cm
Oh, what a lovely combination of shapes you have there! Let's start by finding the area of the semicircle, which is half the area of a full circle. Then, we can calculate the area of the trapezoid using its height and the average of its bases. Finally, we add these two areas together to find the total area of your beautiful figure. Remember, there are no mistakes, just happy little accidents in math!
It is: pi*4^2 divided by 2 = 8/pi which is about 25 square cm
Twice as big.
8*pi + 16 = 41.13 cm (approx)It depends on whether 8 cm is the radius or diameter of the semicircle.
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.
Diameter of semicircle = 1 Area of semicircle = Pi/8 Area of triangle = 0.25 Area outside triangle = (Pi/8) - 0.25 = 0.1427 (rounded to 4th decimal).
Area = 50.265 cm2Circumference = 25.132 cm
64 pi
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
Yes, you can.
Diameter = Radius * 2 In this case, radius = 8 cm so diameter = 16 cm
The radius is always exactly half of the diameter, so if the radius is 8 cm, then the diameter is 16 cm.
The formula for the area of a circle is: A = pi r2 where r is the measure of the radius. If the diameter of a circle is 8 cm, then the radius is half of that measure or 4 cm. Plug that into the formula and use 3.14 to approximate pi. A = 3.14(4)2 A = 3.14(16) Area is approximately 50.24 square cm.