2. How do you find the area of a triangle? h What about this triangle? b 8 5 11
3. Hero’s Formula a, b, and c are the lengths of the sides of the triangles s = semiperimeter = Hero of Alexandria Picture from http://en.wikipedia.org/wiki/Hero_of_Alexandria
4. Brahmagupta’s Formula a, b, c, and d are the lengths of the sides of the quadrilateral s = semiperimeter=
6. Exit Slip Use Hero’s formula to find the area of with sides 3, 7, and 8. Use Brahmagupta’s formula to find the areas of inscribed quadrilaterals with sides 2, 4, 5, and 9.
