Semicircle
A semicircle is a two-dimensional geometric shape that is formed by cutting a full circle in half along its diameter
A semicircle is a two-dimensional geometric shape that is formed by cutting a full circle in half along its diameter. It is essentially half of a circle.
Properties of a semicircle:
1. Diameter: The longest chord of a semicircle that passes through its center is called the diameter. The diameter of a semicircle is equal to the radius of the corresponding full circle.
2. Arc: The boundary of a semicircle is called the arc. It is a curved segment.
3. Central angle: The central angle of a semicircle is a right angle, measuring 90 degrees.
4. Perimeter: The perimeter of a semicircle is the sum of half the circumference of the full circle and the diameter.
5. Area: The area of a semicircle is half the area of the corresponding full circle. It can be calculated using the formula A = (πr^2)/2, where A is the area and r is the radius.
Uses of semicircles:
1. Architectural design: Semicircles are often used in architectural design, such as in the construction of arches or elements of columns.
2. Traffic signs: Semicircles are commonly used in traffic signs to indicate a roundabout or a circular path.
3. Engineering and construction: In engineering and construction, semicircles are used in various applications, including the design of curved ramps, arc-shaped bridges, and wheel arches for vehicles.
Overall, a semicircle is a fundamental geometric shape that has many practical applications across various fields.
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