11.1 and 11.2

Today in class we learned about the area of two dimensional shapes

Area: the number of square units of space within the boundary of a region

Here's a few formula's for area:

rectangle: A=bh

parallelogram: A=bh

area of a rectangle=area of a parallelogram

triangle: A=(1/2)bh

circle:


We also learned a little about these postulates:



-If two closed figures are congruent, then their areas are equal



-If two closed regions intersect along a common boundary, then the area of their union is equal to the sum of their individual areas

the area of the whole shape=the area of the square + the area of the triangle

And thats basically it!
-Olivia