Question

find the perimeter of the rectangle if one of its side is 12 cm and a diagonal is 31 cm​

Answer 1

Answer:

perimeter=2×12+31

55

Answer 2

Answer:

find the perimeter of the rectangle if one of its side is 12 cm and a diagonal is 31 cm

perimeter of rectangle when diagonal and length is given = 2l+2 diagonal square- length square root

perimeter= 2*12+2=26

31 square -12 square

(961-144) cm

817cmsquare root

817 cm root

=81.17