10.2 Area of Trapezoid, Rhombus, Kite

10.2 Area of Trapezoid, Rhombus, Kite

Trapezoid Area

•  $A=\frac{h\left(b_1+b_2\right)}{2}$  

• The 'b's stand for the bases. We're also still only concerned about the 'true' height.

Fill in the Blanks

Discuss with people around you - how would we go about finding the area of this trapezoid? (Hint: need the 'true' height)

Area of a Rhombus

• Similar to the area of a Trapezoid

•  $A=\frac{d_1\cdot d_2}{2}$  

Fill in the Blanks

Multiple Choice

What is the formula for the area of a trapezoid?

• $A=b\cdot h$

• $A=\frac{h\left(b_1+b_2\right)}{2}$

• $A=\frac{d_1\cdot d_2}{2}$

• $A=\frac{b\cdot h}{2}$

Area formula for a Kite - same as a Rhombus!

• Same as Rhombus formula :  $A=\frac{d_1\cdot d_2}{2}$  

Fill in the Blanks

How would you find the area of this Rhombus?

• Discuss with your group