square and rhombus i think
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Isosceles triangle
Two isosceles triangle can make a rhombus. Wish this will help.
Any 2 congruent triangles joined together will form a 4 sided quadrilateral
True
Isosceles triangles are triangles in which 2 angles and 2 sides are congruent, or equal. There is nothing called an isosceles angle. Some isosceles triangles are right triangles. This is where the non-congruent triangle is a right triangle, and the other two are 45 degrees each. This type of triangle is called a 45-45-90 triangle. Two sides are multiples of one and the third is a multiple of root-2. In other words yes it is.