How do you find perimeter?
Add up the sides of an object (non circular)
s1 + s2 + s3 + s4
What is the area formula for a square?
A = l * w
OR
A = b * h
You build a dog run in your back yard. The rectangle has two side lengths of 20 feet and two other side lengths of 10 feet. How many feet of fencing will it take to enclose the dog run? (what is the perimeter of the dog run?)
P = 60 feet
What does area mean in geometry
How do you find the perimeter of a triangle?
Add up all the outside edges
Find the perimeter of a square with one side length of 6 feet.
P = 24
Find the area of a right triangle with base = 7 cm and height = 8cm.
A = 28 in2
Mary needs to fence around her backyard. The length of her backyard is 5m and the width is 8m. How many meters of fencing does she need?
26 meters
Find the perimeter of a an irregular shape with the following sides:
Side 1: 4 m
Side 2: 6 m
Side 3: 8 m
Side 4: 2 m
Side 5: 10 m
Side 6: 3 m
P = 33 m
What does the 'a' stand for in the formula: a = l * w
Find the perimeter of a triangle if it has a base of 6m and two side lengths that equal 3m.
P = 12m
Jasmine needs to fence around her backyard. The length of her backyard is 5m and the width is 8m. The cost of the fencing is $3.00 per foot. How much money will Jasmine spend?
$78.00
You want to paint a wall. The area of the wall is 28 feet. If a gallon of paint will cover 15 feet, how many gallons do you need to cover the wall? (Rounding is needed)
Find the perimeter of a square with a triangle on top. The square side length is 5 feet and one triangle side length of 3 feet and another side length of 3 feet
P= 21 ft
Find the area of a triangle with base = 20 in and height = 30 in.
A = 600 in2
A square pizza box has an area of 20 in2. What is the length of one side of the pizza box?
5 in
The area formula for a triangle is" A = b * h / 2
Why do we divide by 2?