The nice intuitive reason for this was that a right angled triangle of sides AB (base ), BC (height) and hypotenuse AB divides a rectangle of sides AB, BC into two pieces. ... The proof of the area formula for a general triangle given used a trick so that the simple intuitive result could be used. ... If, however, the region has curved or irregular shaped boundaries (for instance there is a river, a lake, a road as aanbsp;...
|Title||:||Joy of Understanding|