Absolutely. Any two congruent right triangles will form a rectangle, and if the right triangles are isosceles right triangles, they will form a square.
a triangle is a three sided shape. there are 4 types of triangles: scalene, isosceles, right angled triangle and an equilateral triangle.
A right angled pentagon.
The name rectangle refers to the right-angled corners. A rectangle is a four-sided shape with right-angled corners.
a right angled triangle
There are 9 triangles in an 11 sided shape
A nine sided shape has 7 triangles
1o triangles
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In geometry, a tridecagon (or triskaidecagon) is a 13-sided (and angled) polygon.
There are 20 triangles inside a 22 sided polygon
3 sided shapes are triangles