The answer rounded to the nearest tenth is 25 meters.
Yes
The side opposite the 35° angle is [ 20 sin(35) ] = 11.472 (rounded)
The hypotenuse is [ 9 sqrt(2) ] = 12.728(rounded)
6.5 sqrt(3) = about 11.2583 (rounded)
14.14 cm (rounded)
It would be an isosceles right triangle. The two sides that aren't the hypotenuse are equal, with lengths of 16.971 (rounded) .
9.0
If it has an hypotenuse then it must be a right angle triangle then by using Pythagoras' theorem its hypotenuse is 2.86 cm rounded and by using trigonometry its smallest angle is 35.02 degrees rounded.
6.4031 (rounded)
If the 7" and 18" are the two legs, then the hypotenuse is 19.313" (rounded). If the 18" is the hypotenuse, then the missing leg is 16.583" (rounded).
5 sqrt(2) = 7.071 (rounded)
The hypotenuse is 29.12 inches long. (rounded)