Perimeter
Luis has two mirrors, one is an octagon and the other is a square. Each side is 1 meter long on both mirrors. Do the mirrors have the same perimeter?
NO! An octagon has eight sides and a square only has 4.
A rectangular shape has the width of 3 cm and the length of 4 cm. What is the area of that shape?
12 cm2
Bob wants to carpet the floor of his house. It is a rectangle and the sides are 4 ft and 3ft. How much carpet is needed?
12 square feet
A cube has a depth of 2 m, a length of 4 m, and a height of 3 m. Name the volume.
24 m3
The distance around a figure is called _______.
What is the perimeter?
A rectangular book has a width of 20 cm and a height of 40 cm. What is the perimeter?
120 cm
What is the formula for area?
a=l x w
Bob has to buy 12 square feet of carpet. Each square foot cost 5 dollars. He has 48 dollars. Does he have enough money to buy the carpet needed?
No. He needs 5 x 12 = 60 dollars
The number of cubic units that make up a solid figure is perimeter. True or False
False? It is volume.
The number of cubic units that make up a solid figure is called _______.
What is volume?
A pentagon has sides that are each 7 cm, what is the perimeter of the hexagon?
35 cm
A square room has a width of 10 meters. What is the square footage of flooring needed for that room?
What is 100 square meters?
Mr. Snow wants to put a fence around the playground. The sides are 10 meters and 30 meters and it is a rectangle. How many meters of fence will he need?
80 meters
Do two solid figures that have the same volume have to have the same shape? explain
No
The number of square units needed to cover a figure is called the _____.
What is area?
How long is each side of a regular triangle that has a perimeter of 27 cm?
9 cm
A room has 18 square meters. What length could each side of the room be?
What is (3 x 6) triangular room, (2 x 9) rectangular room, (1 x 18) rectangular room?
The perimeter of an isosceles triangle is 50 cm. Two sides are 18 cm long. What is the length of the third side?
14 cm
A solid figure has the depth of 4 m, a length of 6 m, and height of 2 m. What is the volume of the solid figure?
What is 48 m?
Can a square have a volume of 9 cubic units?
No. depth, length, and height all need to be the same number of cubes
If the perimeter is 100 cm and the length of one side is 30 cm, what is the width of the rectangle?
20 cm
Do two congruent figures always have the same area?
Yes
An aquarium has a volume of 10 m3
The width of the aquarium is 2 m
The height is 1 m
How long is the aquarium?
5 m
Draw a shape that has a volume of 27 cubic units.
What is a 3 x 3 x 3 cube?
A square has 9 cm sides. What is the area and perimeter of the square?
area = 81 cm2
perimeter = 36 cm