Question

FAN AND MEDAL

Answer 1

Find the missing length. Round to the nearest tenth, if necessary.

Answer 2

it'll be the the Pythagorean theorem, but reversed. the pythagorean theorem is a^2 + b^2 = c^2. Knowing that, square the the hypotenuse and the given leg and fill in the blanks for the Pythagorean theorem equation. You should get something like this:
x^2 +81=196.
Subtract 81 from both sides and you're left with
x^2=115.
Square root both sides and you get
x= (about) 10.7

Answer 3

@Fransisco_w and @cogs