Question

the perimeter of a triangle is 57 cm what is the measure of third side of the triangle if measure of two side is 25 cm and 12 CM

Answer 1

perimeter of the triangle=side a + side b + side c
so,25 + 12 + side c = 57 cm
=>37 + side c = 57 cm
=>side c =>57 - 37
=>side c =>20 cm

Answer 2

Answer:

************************ HEY DEAR *********************

HERE IS YOUR ANSWER.....

WE KNOW ,

THE PERIMETER OF TRIANGLE = LENGTH OF ( 1ST SIDE + 2ND SIDE + 3RD                  

                                                 = SIDE)

SO AS GIVEN IN QUESTION

 57 CM = X + 25CM. +12CM.

  X = 57 -37CM.

 X= 20CM.

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THANKS FOR GIVING ME CHANCE TO ANSWER....

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