Question

Find the value of x if the area of the triangle is 357 in2.
image of a triangle whose longest side is 34 in; a dashed line extends from that side to the opposite corner and is labeled x; the right corner of where the dashed line intersects the 34 in side has a box
A. 21 in
B. 10.5 in
C. 5.25 in
D. 42 in