How to use Clay Bars: Clay Bars should always be used on freshly washed, clean surfaces. Dirt on the surface could cause scratches. Caution: Use only as directed and with an approved Clay Bar Lubricant to reduce friction between the Clay Bar and the vehicle's surface. Work on areas of about three square feet.
A trapezoid is a quadrilateral (has 4 sides) and has only one pair of sides parallel. How to determine the area of a trapezoid: Add the lengths of the 2 parallel sides divide by 2 to get the average length of the parallel sides.Multiply this by the height (distance between the parallel sides.Calculating the Area of a Trapezoid.ow to determine the area of a trapezoid: Add the lengths of the 2 parallel sides divide by 2 to get the average length of the parallel sides. Multiply this by the height (distance between the parallel sides. Calculating the Area of a Trapezoid.
The midsegment of a trapezoid is the segment that joins the midpoints of the nonparallel sides of a trapezoid. In the trapezoid below, the midpoints of the non-parallel sides are points S and V. The midsegment is the red line segment from S to V. The midsegment below can be found by. 1  calculating the lengths of the bases. 2  35-16 = 9 (length of upper base). 3  45-0 =45 (length of lower base). 4  calculating the sum of the bases.