Saturday

February 28, 2015

February 28, 2015

Posted by **Jerald** on Saturday, February 1, 2014 at 10:57am.

Formula : A=1/2(base 1 + base 2)h

A=81.6in?

- Math -
**Reiny**, Saturday, February 1, 2014 at 11:18amYou should be able to do this mentally

area = (1/2)( 3 + 7)(12)

= (1/2)(10)(12)

= (1/2)(120)

= 60

How did you ever get 81.6 ??

**Answer this Question**

**Related Questions**

math - A trapezoid has a height of 7 inches and bases of 11 inches and 4 inches...

Math - The area of trapezoid is h( b1+b2)/5, where h is the altitude, and b1 and...

math - The area of trapezoid is h( b1+b2)/5,where h is the altitude, and b1 and ...

math - The area of trapezoid is h( b1+b2)/5,where h is the altitude, and b1 and ...

algebra - Find the length of one base of a trapezoid if the area is 126 inches ...

Algebra - One base of trapezoid AGIE is four less than three times the other ...

algebra 1 - The area of trapezoid is h( b1+b2)/5, where h is the altitude, and ...

algebra1 - The area of trapezoid is h( b1+b2)/5, where h is the altitude, and b1...

Geometry - A trapezoid has an area of 128in2(inches squared), height of 32in, ...

Math - A rectangular solid has a base area of 43.3 sq inches and a height of 50 ...