A=788.5
the formula to find a trapezoid is 2h(b₁+b₂)
to substitute that, i would be 2(19)(55+28)
the answer to that is 788.5
P=125.
to find the perimeter, u need o add all the sides to get the perimeter.
the formula is P=a+b+c+d
to substitute that it would be 55+28+21+21.
the answer to that is 125.
