Aim #76: How do we determine
perimeter and area of different shapes?
Do Now:
Homework: Aim 76 Handout
1
Perimeter
the ______ of the measures of the sides of a polygon
Ex #1:
5 in
8 in
Ex #2:
12 in
Ex #3:
#3:
8 cm
Ex #4:
#4:
13 cm
Ex #5: Determine the perimeter:
8 ft
10 ft
a) in terms of π
b) to the nearest hundredth
2
Area
Shape
triangle
Formula
A = 12 bh
square
A = s2
rectangle
A = lw
parallelogram
A = bh
trapezoid
circle
A=
1
2
h(b1 + b2)
A = πr2
3
4
5
6
7
Attachments
ANGLE OF ELEVATION AND ANGLE OF DEPRESSION.gsp
HW 75.pdf