7-4 Areas of Trapezoids, Rhombuses and Kites

M11.C.1

Objectives:1) To find the area of a trapezoid, rhombus

or a kite

The height of a trapezoid is the perpendicular distances h between the bases.

A = 1/2h(b₁ +b₂)

Example: Find Area A car window is shaped like a trapezoid

shown. Find the area of the window.

Theorem: Area of a Rhombus or a Kite The area of a rhombus or a kite is half the

product of the lengths of its diagonals. A = 1/2d₁d₂

Example: Finding the Area of a Kite Find the area of kite ABCD.

Example: Find the Area of a Rhombus Remember the properties of a rhombus!! Find the area of rhombus EFGH.

Homework Handed-In Page 376 #1-7, 14-21, 42, 43