Geometry
posted by Ivan on .
a = 12 cm
b = 14 cm
h = 8 cm.
Compute the area. How many cm2?

You can use Heron's formula, which calculates the area of a triangle from the lengths of the three sides.
Let a,b,c=lengths of the three sides
s=(a+b+c)/2
Area of triangle
=sqrt(s(sa)(sb)(sc))
Post your answer for a check if you wish. 
I believe the figure is a trapezoid. I have misread it as a triangle (with given sides a, b and c).
The area of a trapezoid (trapezium) is
(a+b)h/2
=(12+14)*8/2
=104