Question 1107696
find d give you answer in simplest form


                        <pre>
                               R
                              /|\
                             / | \
                  7/sqrt(2) /  |a \d
                           /   |   \
                          /    |    \
                         / 45  |  30 \
                       S/______|______\T
                            b  U   c     
</pre>
Angle RST = 45 --> angle SRU = 45
Side a = b = 7
----------------
sin(30) = a/d = 1/2
d = 14