Jahn,
The area of a triangle is ^{1}/_{2} base height. If I call the 750 foot side the base then, since the angle between this side and the 500 foot side is a right angle, the height of the triangle is 500 feet, Thus the area is
^{1}/_{2} base height = ^{1}/_{2} 750 500 = 187500 square feet.
Is the answer given in acres? There are 43560 square feet in an acre so the area of the lot is
^{187500}/_{43560} = 0.43 acres
Penny
