Question

The side of a triangle is 3,5,7.The length of the shortest side of a similar triangle whose longest side is 21 is​

Answer 1

Answer:

Step-by-step explanation:

= x+5/×-3 = 7/3

= 3 ( x+5) = 7 (x-3)

=3x+15 = 21+15

= 7x- 3x = 21+15

= 4x = 36

= x = 36/4

= x = 9

therefore, x = 9