Posted by Veronica on Tuesday, June 7, 2011 at 7:00pm.
ABCD is an isosceles trapezoid with a height of 4 inches and bases of 10 and 12 inches .What is the perimeter of this trapezoid in inches and feet . HINT:Only the bottom of the entire figure is 16 inches long, not the top

geometry  Henry, Wednesday, June 8, 2011 at 8:11pm
First, we draw the trapezoid with the long base on the bottom. Using dotted lines, we draw 2 altitudes forming 2
congruent rt. triangles and a rectangle.
AE=ED = (ADBC) / 2 = (1210)/2 = 1in =
hor. sides of rt. triangles.
AB = CD = sqrt(1^2+4^2) = sqrt17 =
4.1in. = Length of nonparallel sides.
P = 4.1 + 10 + 4.1 + 12 = 30.2in.
Answer This Question
Related Questions
 Geometry  The measure of the consecutive sides of an isosceles trapezoid are in...
 geometry  the area of a trapezoid is 108 square inches and one of its bases has...
 Math  Find the height of an isosceles trapezoid who's bases are 8 inches and 24...
 math  A trapezoid has a height of 7 inches and bases of 11 inches and 4 inches...
 math  a piece of carpetis in the shape of an isosceles trapezoid with a height ...
 geometry  What is the area of a trapezoid with bases of 2inches and 4 inches ...
 geometry  The bases of a trapezoid measure 1/4 and 3/8 inches, and the height ...
 Geometry  1. What is the base and the height of the rectangle if the area is ...
 Geometry  The height of a trapezoid is 2 inches. If one base is 14 inches long ...
 Math  The area of trapezoid is h( b1+b2)/5, where h is the altitude, and b1 and...
More Related Questions