Easiest thing to do here would be to draw a diagram and label the sides with their lengths and draw a line for the diagonal. You can see the diagonal forms part of a right-angled triangle, with its shorter lengths 35 cm and 12 cm.
So using Pythagoras's Theorem, x2 = 352 + 122 = 1369
x = square root of 1369 = 37 cm.
The square's diagonal is 11.314 cm
Assuming your measurements also account for the tile grout, 5cm goes into 100cm 20 times, and 12cm goes into 144cm 12 times, so 20 * 12 = 240 tiles.
If the only information that you have is ... A) the figure is a rectangle, and B) the perimeter ... then you cannot calculate the area. The area of a rectangle is the length multiplied by the height., The perimeter is twice the length plus twice the height. So, a rectangle with a length of 9 units and a height of 1 until will have a perimeter of 20 units and an area of 9 square units. Another rectangle with a length of 6 units and a height of 4 units will also have a perimeter of 20 units, but it will have an area of 24 square units. To be able to calculate the area from the perimeter you need to know one of two additional things - either one of the measurements, or the ratio of the height to the length.
the diagnol is the side of the square times squareroot(2) so the length of the side is 11/squareroot(2) and in simplified form your final answer is 11*squareroot(2)/2
If diagonal is 10 then each side is sqrt 50 (Pythagoras) and area is sqrt 50 x sqrt 50 ie 50
Using Pythagoras' theorem the length of the diagonal is 20 feet
13 57/64 "
The long diagonal will be sqrt(7500) cm = 86.60 cm (to 2 dp)
Using Pythagoras, the diagonal is sqrt(122 + 162) = sqrt(144 +256) = sqrt(400) = 20 feet.
I can and will. So if you put the diagonal through a rectangle you create a right angled triangle of which you can use pythagoras theorem. x2 = 152 + 62 x2= 261 x = 16.16m
A rectangle with width 4 can have any length!
The square's diagonal is 11.314 cm
The area of rectangle is : 152.0
The perimeter of a rectangle whose length is 5cm wit a width of 6cm is 22cm
The length of the diagonal of a square whose side lengths are 7 square root 2 (9.89949494) is: 14 units.
The area of rectangle is : 54.0
Use Pythagoras' theorem: 52+72 = 74 and the square root of 74 is 8.602325267 Answer: 8.6 units to one decimal place