Question

Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth
a.. x = 5.7, y = 6.9 b. x = 6.9, y = 5.7
C. x = 11.3, y = 8 D. x = 8, y = 11.3

Answer 1

Tan 45 = 8 / y
 1 = 8/y

y = 8

and 
x^2 = 8^2 + 8^2    ( Pythagoras theorem)
x^2 = 128
x = 11.3

Its C