Warm Up:

1
Warm Up

• Find the circumference of the circle. Round to
  nearest hundredth
• 1. r 3.4 m 2. d 9 cm
• Find the area of the figures.
• 3. Circle with diameter 6 cm
• 4. Triangle with base 4 in
• and height 5 in

2
Lesson 4.3 Area

• I can
• Find the area of a circle, triangle, square, and
  quadrilaterals using their formulas.

• Vocabulary
• Length
• Width

3
Area of a Square
4
Find the Area

• You are given the side length of 4.

4
5
Find the Area
6
2
6
Length

• A dimension of a figure, usually the longer one,
  that is measured from end to end.

Length
7
Width
A dimension of a figure, usually the shorter
one, that is measured from side to side.
Width
8
Area of a Rectangle
Width
Length
9
Find the Area
7
12
10
Find the Area
15
2.4
3
8.3
11
Area of a Parallelogram
height
base
12
Find the Area
5
8
13
Find the Area
5
15
9
6
4
1
2
12
14
Area of a Rhombus
height
base
15
Find the Area
5.2
6
16
Find the Area
3.1 ft
7.4 m
4 ft
8 m
13.7 km
15 km
17
Area of a Trapezoid
b1
h
b2
18
Find the Area
3
3
4
19
Find the Area
2
4
1
4
5
3