Sunday

December 21, 2014

December 21, 2014

Posted by **anthony** on Saturday, April 11, 2009 at 11:16pm.

The triangle of the trapezoid is triangle ABE and the bases are BC and AD.

Could you also give me a link about the theorems and postulates of a two column proof?

- math -
**Reiny**, Saturday, April 11, 2009 at 11:26pmI assume BE is the height of the trapezoid.

then AE=8

and by Pythagoras

AB^2 = 64+81 = 145

AB = √145 = 12.042

**Answer this Question**

**Related Questions**

math/geometry - An architect is designing a small A-frame cottage for a new ...

Geometry - A sandpit in the shape of a rectangular prism has length 7 feet, ...

geometry - A sandpit in the shape of a rectangular prism has length 7 feet, ...

calculus - 6. A trough is in the shape of a triangular prism. It is 5 feet long ...

geometry - what is the area of a isosceles trapezoid with legs of 15 feet and ...

geometry - the longer base of an isosceles trapezoid is 14 feet. the nonparallel...

6th grade - rectangular prism: height 7 feet, width 4 feet and length 3 feet ...

Math - A lot is in the shape of a trapezoid. The sum of the bases is 180 feet. ...

physics - You are standing 7 feet from one speaker and 13 feet from another. ...

algebra 2 - An auditorium has a curved back wall. A horizontal cross section of ...