Chapter 11.3: Areas of Other Quadrilaterals

Question 1

Thm. 11.4 - Area of a Trapezoid

Answer 1

the area of a trapezoid is half the product of the height and the sum of the bases, or A=1/2h(b1+b2).

Question 2

Thm. 11.5

Answer 2

if the diagonals of a quadrilateral are perpendicular, then the area of the quadrilateral if half the product of the lengths of the diagonals, or A=1/2 (d1d2)