what is perimeter?. in-class practice 12 in 7 in 7+12+7+12= 38 in
TRANSCRIPT
What is perimeter?Perim
eter
In-Class Practice
Perimeter
12 in
7 in
7 +12 +7 +12 = 38 in
a242
In-Class Practice
Perimeter
8 in4 in
x
+b2 =c2+x2 =82
4 3 in
8 +4 +4 3 = (12 + 4 3 ) in
What is area?
Area
s
A = s2
Area of a Square:
s
Area Addition
Area
s
Area =
s
s s
s2 + s2
Area Addition
Area
In-Class Practice
1 in
1 in
1 in2 +1 in2 +1 in2 +1 in2 +1 in2+1 in2 +1 in2 +1 in2 +1 in2 = 9 in2
64 ft2
Area Addition
Area
In-Class Practice(or Subtraction)
8 ft
8 ft
6 ft
6 ft
= 28 ft2-(6 ft)2-36 ft2(8 ft)2
Area Addition
Area
…and the area of a rectangle
h
b
b (1 unit2)
b (1 unit2)
b (1 unit2)
b (1 unit2)
b (1 unit2)
b (1 unit2)
…
b (1 unit2)
Area Addition
Area
…and the area of a rectangle
b
b
b
b
b
b
…
b (1 unit2)+ + + + +
h
=bh units2h
b