Let the side length of the square be x, then A = x^2
but diagonal (z) = sqrt(2x^2)
z^2 = 2x^2
x^2 = 1/2 z^2
Thus, A = 1/2 z^2
dA/dz = 1/2 (2z) = z
The rate of change is z.
When z = 4, the rate is 4.
Answer:
25.13 square meters
Step-by-step explanation:
The formula for finding the circumference of a circle is πd or pi times the diameter
Diameter = 8 meters
Pi = 3.14
3.14 times 8 = 25.13
Answer:
25
Step-by-step explanation:
12+13=25 so 25x5=125 and 125 divide 5=25
To find:
An irrational number that is greater than 10.
Solution:
Irritation number: It cannot be expression in the form of
, where,
are integers.
For example:
.
We know that square of 10 is 100. So, square root of any prime number is an example of an irrational number that is greater than 10.
First prime number after 100 is 101.
Required irrational number 
Therefore,
is an irrational number that is greater than 10.
A = (1/2)*b*h = (1/2)*8*10 = 40 . . . . units^2