How do I find the missing side of this similar triangle by using the are? Area for A is 17 mm^2 and B is 6800 mm^2

Step-by-step explanation:

The ratio of areas of similar figures is the square of the scale factor. Then we have ...

  larger/smaller = √(6800/17) = √400 = 20

The dimensions of the larger triangle are 20 times those of the smaller triangle.

  x mm = 20(7.5 mm)

  x = 150

__

  20(y mm) = 80 mm

  y = 4

answer: 193

explanation:

200-7 = 193

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted