Combined perimeters of the triangle and square will be 148 inches
Step-by-step explanation:
An equilateral triangle has all its sides have equal length. The perimeter is 3l where l is length of one side.Given the perimeter of the equilateral triangle as 63 inches then,finding the length of each side will be:
3l=63
l=63/3=21 inches.
Square has its lengths 2 inches shorter than each side of triangle,this will be;
21-2=19 inches
Perimeter of the square will be 4l = 4*19=76 inches
In the new triangle 3 inches are added to each side,thus the new side will be;
21+3=24 inches.
New perimeter of triangle will be: 3l = 3*24=72 inches
The new combined perimeter will be 76+72=148 inches.
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Perimeter of an equilateral triangle : brainly.com/question/11068968
Keywords :Perimeter,equilateraltriangle, square
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