Use the the triangle.
a. find the length of the hypotenuse using the special relationships for a 45 degree, -45 degree, -90 degree triangle. explain the relationships.
b. write the exact value for sin 45 degrees as a fraction in simplest form.
c. use the formula for the area of a triangle given sas to find the area of the triangle.
d. use a different method to find the area of the triangle. explain your steps.