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A circle is two semicircles put together. The circumference of a circle is the length around it, so half of that would be what you are aiming for. Let's call the circumference "c" and the radius (the straight part of the semicircle) "r". Pi is also needed in this problem, so we can use "π". The equation for the circumference of a circle is c=2πr. Replace "r" with the length of the straight part of the circle, and do the math. Divide your answer by 2.
Example:
r=2
c=2πr
c=2π2
c=4π
c=(approximately)12.57
12.57 divided by 2 equals approximately 6.29.
The length of the curved part of the semicircle is 6.29!
Hope this helps!
What else can I help you with?
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.
What is the perimeter of semi circle radius 7cm?
The perimeter of a semicircle consists of the curved part and the straight diameter. The curved part can be calculated using the formula for the circumference of a full circle, which is (C = 2\pi r). For a semicircle, it would be (\pi r), so for a radius of 7 cm, the curved length is ( \pi \times 7 \approx 21.99 ) cm. Adding the diameter (which is (2r = 14) cm), the total perimeter is approximately (21.99 + 14 = 35.99) cm.
How do you find the length of the curved part of the quartercircle?
Work out the circumference of the circle and then divide it by 4
What is the perimeter of a semi circle with the straight edge measuring 10cm?
The straight edge of the semicircle is the diameter, which measures 10 cm. The radius is half of the diameter, so it is 5 cm. The perimeter of the semicircle includes the curved part plus the diameter: the curved length is (\pi \times r), which is (\pi \times 5 = 5\pi) cm. Therefore, the total perimeter is (5\pi + 10) cm, approximately (10 + 15.71 = 25.71) cm.
What shape is an arc?
An arc is a curved shape that is part of a circle. It is defined by two endpoints on the circle and represents the segment of the circumference between those points. The degree of curvature of an arc can vary, depending on the radius of the circle and the distance between the endpoints. Overall, arcs can be classified as either minor arcs, which are shorter than a semicircle, or major arcs, which are longer than a semicircle.
How do you find the circumference of a half circle if you have the diameter?
The length of the curved part of the semicicle is π*d/2 where π is the transcendental number approximated by 3.14159 and d is the diameter. The length of the straight part of the semicircle is, of course, d.
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.
A rod of length L has total charge Q distributed uniformly along its length it's then bent in the shape of a semicircle find the magnitude of the electric field at the centre of semicircle?
At the center of the semicircle, the electric field due to the straight part of the rod will cancel out because of the symmetry. The electric field at the center of the semicircle is only due to the curved part, so you can treat the semicircle as an arc of a circle with charge distributed along its length. You can then calculate the electric field using the formula for the electric field of a charged arc of a circle.
What is the perimeter of semi circle radius 7cm?
The perimeter of a semicircle consists of the curved part and the straight diameter. The curved part can be calculated using the formula for the circumference of a full circle, which is (C = 2\pi r). For a semicircle, it would be (\pi r), so for a radius of 7 cm, the curved length is ( \pi \times 7 \approx 21.99 ) cm. Adding the diameter (which is (2r = 14) cm), the total perimeter is approximately (21.99 + 14 = 35.99) cm.
How do you find the length of the curved part of the quartercircle?
Work out the circumference of the circle and then divide it by 4
What shape has one curved side and 2 straight sides?
It could be a sector although that implies that (a) the curved side is part of a circle which it need not be and (b) that the two straight lines meet at the centre of the circle - again an assumption not justified by the requirements of the question.
What is the perimeter of a semi circle with the straight edge measuring 10cm?
The straight edge of the semicircle is the diameter, which measures 10 cm. The radius is half of the diameter, so it is 5 cm. The perimeter of the semicircle includes the curved part plus the diameter: the curved length is (\pi \times r), which is (\pi \times 5 = 5\pi) cm. Therefore, the total perimeter is (5\pi + 10) cm, approximately (10 + 15.71 = 25.71) cm.
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.
What shape is an arc?
An arc is a curved shape that is part of a circle. It is defined by two endpoints on the circle and represents the segment of the circumference between those points. The degree of curvature of an arc can vary, depending on the radius of the circle and the distance between the endpoints. Overall, arcs can be classified as either minor arcs, which are shorter than a semicircle, or major arcs, which are longer than a semicircle.
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 equation for the Surface Area of a cylinder?
If the cylinder has radius R and length L , the curved part of the surface has area 2piRL and each of the ends has area piR^2. The total surface area is the sum of the curved part plus two ends.
What is the circumference of a semi circle with a radius of three?
The circumference of a semicircle can be calculated using the formula ( C = \pi r + 2r ), where ( r ) is the radius. For a semicircle with a radius of 3, the curved part of the semicircle is ( \frac{1}{2} \times 2\pi r = \frac{1}{2} \times 2\pi \times 3 = 3\pi ). The straight edge adds another ( 2r = 2 \times 3 = 6 ). Thus, the total circumference is ( 3\pi + 6 ).
