Question

find 3/4 of the perimeter of an equilateral triangle triangle of side 3 1/2 centimeters​

Answer 1

Answer:

7.875 cms

Step-by-step explanation:

equilateral triangle: all three sides equal

one side: 3 1/2 centimeters

perimeter = 3a    ( 'a' being the side)

                 = 3 * 3 1/2 = 7/2 * 3

                                   = 21/2

3/4 of perimeter: 3/4 * 21/2 = 63/8 = 7.875 centimeters