1. 11.2 Area of Trapezoids, Kites & Rhombuses
HW pg. 733 #3­29 odds 1
March 25, 2014
BellworkFind the area of the polygon.
480 units2480 units2
414.0 units2
4. Find the area of a triangle
with side lengths 13 inches,
13 inches, and 10 inches.
60 in.2
11.2 Areas of Trapezoids, Rhombuses and Kites
Formula for the area of a:
A =1
/2d1d2
Objectives:
1. Apply area formulas of triangles, trapezoids, & kites to solve problems.
Rhombus:
9mm
12mm
9mm
12mm
d1
d2
Trapezoid:
Kites (which would apply to any rhombus):
A =1
/2h(b1 + b2)
To find the area of a kite, identify and label the diagonals asd1 and d2.
Then plug into the formula: A = 1
/2d1d2
Area = _____
17m
10m
5m 7m
Area = _____
13cm
8cm
Find the missing measurements.
30 in
20 in
h
Trapezoid NOPQ has an area of 250 square inches.
Find the height of NOPQ.
N O
PQ
Rhombus RSTU has an area of 675 square meters.
Find SU.
TU
R S
15m
15m
Find the area of the quadrilateral.
F
G
I H
18 in
9 in
FH = 37 in

2. 11.2 Area of Trapezoids, Kites & Rhombuses
HW pg. 733 #3­29 odds 2
March 25, 2014
HW:
11.2 p.733
#3-29 odds