0
Add your answer:
Earn +20 pts
Ho do you prove the formula for the area of a rectangle?
Use squares and try it out for yourself. Get a number of squares and make a rectangle 3 squares long by 4 squares wide. Count the squares. You should have 12 squares (or 3*4). That's the best way I know to prove the formula.
How many squares are in a square with sixteen squares?
Assuming each of the smallest squares (i.e., each of the 16 ones forming the large square) has a side 1 unit long: There are 16 squares that are 1x1. There are 9 squares that are 2x2. There are 4 squares that are 3x3. And there is 1 square that is 4x4. So the total number of squares is 30.
How many squares are there in a 4 by 3 grid?
In a 4 by 3 grid, there are a total of 20 squares. To calculate this, you can start by counting the individual squares of each size within the grid. There are 12 one-by-one squares, 6 two-by-two squares, and 2 three-by-three squares. Adding these together gives a total of 20 squares in a 4 by 3 grid.
How many 3cm squares and 2cm squares do you need to get a total area 35sq cm?
You would need two 3 cm squares and two 2 cm squares to get a total area of 35 sq cm. A 3 cm square has an area of 9 sq cm and a 2 cm square has an area of 4 sq cm.
Why does a lens with with 2 cm diameter have 4 times the light gathering power of a 1 cm lens?
Because the 2cm lens has 4 times the area of a 1cm lens. (area = Pi*r2)
How many squares 1cm by 1cm can fit in a square 2.8cm by 2.8cm?
4 - without cutting the 1cm x 1cm squares.
How many squares in a 4x4 squre grid?
Assuming it is 4cm x 4cm, then there would be 16 1cm x 1cm squares. * * * * * But, there are also 9 2cm x 2cm squares, 4 3cm x 3cm squares and 1 4cm x 4cm square. That makes 30 in all.
What is the perimeter of a square if it has an area of 16 centimetre squares?
because it has 16 squares in it so it would have 4 cm for each length i think its 16 tho it is strange that the area and the perimiter are the same...
How many white squares are in a row on a checkerboard?
4 white squares and 4 black squares on each row
How many rows are in a Hershey chocolateBAR?
There are 12 squares. It can be notes as 4 rows across with 3 squares in each, or as 3 rows down with 4 squares in each.
How many squares are in 12 square foot?
That depends on the size of the suares. For example, there will be a million squares with sides of 0.001 ft each. If the 12 square ft area is in the form of a 6*2 rectangle, there will be space for 3 squares of 2*2. But if the area is 3*4 then 2*2 squares cannot cover it without overlap.
What are the dimensions of a square if the squares area is 196?
4 by 4 by4 by4
How many rectangles in a 3 by 3 square?
9 obvious, 3 for each row, 3 for each column, 4 for each rectangle of 4 squares, all of the squares. So 19
How do you find the total area of joined squares?
To find the area of joined squares, add up the area of each individual square. For instance, I have a square with a side length of 5 attached to another square with a side length of 2 A = 52 + 22 = 25 + 4 = 29 units2
What is the perimetre of a square if it has an area of 4 centimetre squares?
this is stupidinuss
How many vertices does a square triangle have?
3 squares and 4 triangles will have 24 vertices. There will be 4 vertices for each of the 3 squares. Since there are 3 squares, that will be 12 vertices. There are 3 vertices for each of the 4 triangles. Since there are 4 triangles, that will be 12 vertices. 12+12=24.
How do you calculate the surface area of a box?
To calculate the surface area of a box, find the area of each face, and add all answers together. For example, the surface area of a square whose faces are all 2" by 2" can be calculated with the following equation: 2x2x6 2x2 equals 4. Since a square's sides are all the same length, we can simply multiply 4 by the number of faces on a square(6), instead of 4+4+4+4+4+4. THIS IS ONLY TRUE FOR SQUARES! I REPEAT, THIS IS ONLY TRUE FOR SQUARES!!!! For all other shapes, the sides are NOT all the same length. So THIS IS ONLY TRUE FOR SQUARES!
