Perimeter
Luis has two mirrors, one is an octagon and the other is a square. Each side is 5 cm long on both mirrors. Do the mirrors have the same perimeter?
no, octagon is 40 cm, square is 20 cm
A rectangular shape has the length of 3 units and the width of 4 units. What is the area of that shape?
12 square units (or 12 units squared)
Bob wants to carpet the floor of his house. It is a rectangle and the sides are 4m and 3m. How much carpet is needed?
12 meters squared
A cube has a depth of 2 units, a length of 4 units, and a height of 3 units. Name the volume.
2x4x3=24 cubic units
The distance around a figure is called _______.
What is the perimeter
A rectangular book has a width of 3 cm and a length of 6 cm. What is the perimeter?
18cm
How do you calculate area?
length X width
Bob has to buy 12 square meters of carpet. Each square meter 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 _______.
volume
A hexagon has sides that are each 7 m, what is the perimeter of the hexagon?
42 m
A square room has a width of 10 m. How many square meters of flooring is needed for that room?
100 square meters
Mr. Horst wants to put a fence around the playground. The sides are 100 m and 300 m and it is a rectangle. How many meters of fence will he need?
800m
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 _____.
area
How long is each side of a triangle that has a perimeter of 27 cm?
9 cm
How do you calculate area of a triangle?
base X height / 2
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 width of 4 cm, a length of 6 cm, and height of 2 cm. What is the volume of the solid figure?
48 cubic cm(centimeters cubed)
Can a cube have a volume of 9 cubic units?
no, depth, length, and height all need to be the same number of cubes
What is the length of each side of a regular pentagon with a perimeter of 30 km?
6 km
Do two congruent figures always have the same area?
yes, ex. 3 x 2 = 6 and 2 x 3 = 6
Draw two different shapes that both have the perimeter of 16 cm.
4cm X 4cm square, or a 6 cm X 2 cm, or 5 cm X 3cm
Draw a shape that has a volume of 27 cubic units.
3 x 3 x 3 cube
A square has 9 cm sides. What is the area and perimeter of the square?
81 square cm and 36 cm