Find the value of x. If necessary, round to the nearest tenth.A. 11.7 in.B. 9.7 in.C. 13.7 in.D. 6.9 in.

area of a triangle = 1/2 x base x height
47 = 1/2(x)(x)
1/2x² = 47
x² = 94
x = √94
= 9.7 (to the nearest tenth)

The value of x is 9.7 inches, rounded to the nearest tenth.