circle, triangle, square and rectangle
First get any shape and divide it by triangles. For example, a hexagon has six sides, you divided by 4 triangles. You know that a triangle measures 180 degrees, so you add all the triangle by 180 degrees and you give the answer.
rectangle, circle,square,triangle
54
square
An equilateral triangle.
circle, triangle, square and rectangle
Squares
How many lines of symmetry does an equilateral triangle have?
First get any shape and divide it by triangles. For example, a hexagon has six sides, you divided by 4 triangles. You know that a triangle measures 180 degrees, so you add all the triangle by 180 degrees and you give the answer.
No, parallelograms are specific to quadrilaterals (shapes with 4 sides).
They are five plane shapes!
rectangle, circle,square,triangle
Triangle, Rectangle, Circle, Pentagon
54
square
4 Triangles A trapezoid makes 3 triangles. The 4th triangle can be placed on the top of the trapezoid.