Multiply 2-5 Groups: Geometric Measurement 3-35
Provide context for multiplication by finding the perimeter of equilateral triangles, squares, and regular pentagons. If the sides of a triangle all measure 2 inches, what's the perimeter? Since the total length of all 3 sides is 3x2 = 2x2 + 1x2 = 6, the perimeter is 6 inches. Find and add partial lengths to get the total length.
