It depends on what information you have. There are formulae for when you have the lengths of all three sides or two sides and the angle between them.
If you have only one side and two angles (implicitly all three) you can calculate the lengths of the other sides.
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An equilateral triangle is a regular shape because it has 3 equal sides.
A tetrahedron is not an irregular triangle, it is a three dimensional shape, the simplest form of pyramid, with 4 triangular sides.
It could be any irregular shape whose sides add up to 36cm as for example a scalene triangle
An irregular shape like the delta or triangle( not equilateral) oblong (rectangle).....
Circle, triangle, oval, ellipse, & irregular shapes
Asymmetrical. The answer is NOT irregular. An irregular shape, such as an isosceles triangle does have an axis of symmetry.
A scalene triangle is an example of an irregular shape
A scalene triangle is an example of an irregular shape
An equilateral triangle is a regular shape because it has 3 equal sides.
It could be any shape which has the elevant area - a circle, triangle, quadrilateral or a polygon with any number of sides, or even an irregular blobby shape!
A tetrahedron is not an irregular triangle, it is a three dimensional shape, the simplest form of pyramid, with 4 triangular sides.
It could be any irregular shape whose sides add up to 36cm as for example a scalene triangle
It could be any shape - circle, oval, rectangle, square, triangle, rhombus, irregular, etc - as long as the area is 3 square feet.
An irregular shape like the delta or triangle( not equilateral) oblong (rectangle).....
An equilateral triangle is a regular shape because it has 3 equal sides.
It is an irregular tetrahedron or triangle-based pyramid.
Circle, triangle, oval, ellipse, & irregular shapes