Question

(Geometry) Which expression shows the value of c?

Answer 1

a. b/cos45°

b. a cos 45°

c. a sin 45°

d. b/sin45°

Answer 2

\[\sin(45)=\frac{a}{c}\] so
\[c=\frac{a}{\sin(45)}\]
since \(a=b\) you can also say \(c=\frac{b}{\sin(45)}\)

Answer 3

very strange question because you have an isosceles right triangle , and therefore \(a=b\) and \(c=a\sqrt{2}\)

Answer 4

Thanks!