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Answer:
The length is APPROXIMATELY equal to 12.4.
Step-by-step explanation:
Use the converse of the Pythagorean Theorem (
+
=
[where "c" is both the longest side and the hypotenuse]) since a rectangle's diagonals will always cut it into two right triangles:
![13^{2} = 169](https://tex.z-dn.net/?f=13%5E%7B2%7D%20%3D%20169)
![4^{2} =16](https://tex.z-dn.net/?f=4%5E%7B2%7D%20%3D16)
169-16=153.
≈ 12
or
![\sqrt{153}=12.36931688](https://tex.z-dn.net/?f=%5Csqrt%7B153%7D%3D12.36931688)
or if the problem has to be exact (using radicals)
3*![\sqrt{17}](https://tex.z-dn.net/?f=%5Csqrt%7B17%7D)
I hope this helps ;)
Answer:
s the question like that?
Step-by-step explanation:
a- x = b<u> </u><u>+</u> x .
b. a
Answer:
The area of DBE = 27 square units
Step-by-step explanation:
Area of ABC = 3 square units
In the figure, we can see that ABC was enlarged so that BDE is formed where side BD = 6 and AB was = 2
Hence ABC was enlarged 3 times its size.
We know by formula that:
Area of ABC = 1/2(base x perpendicular)
3 = 1/2(2 x p)
=> p = 3
As ABC was enlarged 3 times its size, the perpendicular of BDE must be 3*p
= 3*3 = 9
AREA OF DBE = 1/2(base*perp)
= 1/2(6*9)
= 27 square units
See if the distance between the two lines is consistent with a compass.
Make sure the lines intersect at right angles with the corner of a piece of paper.
Measure each of the angles with a straightedge.
There is no way to ensure you have constructed parallel lines.