They are both plane figures.
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Oval consists of two arcs (pieces of circles) connected to each other so that there are no sharp edges. It resembles an egg. A circle is perfectly round.
rectangle,square,circle,quadilateral
Not in general. The diagonals of a rectangle are equal length. A rhombus that is also a rectangle would be a square.
The relationship between the radius and area of a circle is as follows: Area of circle = 3.14 x Radius x Radius or 22/7 x Radius x Radius
No. The Circle is. The Circle is common in all of those trusses as well, the Triangular shape is made up of tubular steel. The Circle has no weak points like the Triangle. The Triangle is weak at the center of the flat sides and the joining of the points. Unlike a Rectangle a Circle will not collapse. A Circle distributes any force applied to it across it's entire surface. Force on a Triangle is carried by it's points.Old answer:YesYes, it is. The triangle is common in all sorts of building supports and trusses. It is strong because the three legs of a triangle define one and only one triangle. If all three sides are made of rigid material, the angles are fixed and cannot get larger or smaller without breaking at the joints, unlike a rectangle, for example, which can turn into a parallelogram and even collapse totally. If you take a rectangle and place one diagonal piece from corner to corner, you can make that strong and stable, too, but doing that makes two triangles!! Think about it! so yes, it is the strongest shape
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