RO divides the rectangle into two congruent right triangles.
The area of the one triangle is equal half area of the rectangle.
Calculate the area of rectangle:

The area of right triangle:

Use the Pythagorean theorem to calculate the length of RO:

The formula of an area of this right triangle is:

Therefore we have the equation:

Answer:
Step-by-step explanation
you are able to make two squares because you can use the square root of 36 and that twill give you 6 not a decimal.
in comparison if you do the square root of 15 it will give you 3.87298335
Answer:
1/18 or 0.05
Step-by-step explanation:
Answer:
A. t(x) = 450 - 0.06x
Step-by-step explanation:
The layer which is originally 450 m thick is decreasing by 0.06 m.
450 - 0.06
... per day. x represents days.
0.06x
So,
450 - 0.06x