Answer
The area of the triangle is $30.75$ yd$^{2}$ and the perimeter is $26.25$ yd.
Work Step by Step
1. Find the area of the triangle
Let $A =$ area of the triangle
$A = base \times height \div 2$
$A = (10.25 \times 6) \div 2$
$A = 30.75$ yd$^{2}$
2. Find the perimeter of the triangle
Let $P =$ perimeter of the triangle
$P = a + b + c$
$P = 9 + 7 + 10.25$
$P = 26.25$ yd
