The perimeter of an office whose floor area is 225 square units is 60 units
For example;
For example;
We are given the area of a square as 225 square units
Therefore; since the area of a square is given as s², where s is the side of the square.
Then; s² = 225
s = √ 225
= 15 units
But Perimeter of a square is given by; 4 × s
Thus; Perimeter = 4 × 15 units
= 60 units
Keywords; Perimeter, Area
Level: Middle school
Subject; Mathematics
Topic: Area and Perimeter
Answer:
2 pi
Step-by-step explanation:
The radius is 2
The area of a circle is
A = pi r^2
We have 1/2 of a circle so
1/2 A = 1/2 pi r^2
=1/2 pi ( 2)^2
=1/2 pi *4
= 2 pi
Answer:
The rule is: y = -10x+85
Step-by-step explanation:
The rule is given by:
Here m is the gradient and b is the y-intercept.
We have to take two pairs of input-output to find the rule
Let the two pairs be:
(x1,y1) = (1,75)
(x2,y2) = (2,65)
Slope is found using the formula:
Putting the values
Putting the value of slope
Putting a pair of input-output in the equation (1,75)
Putting the value of b
Hence,
The rule is: y = -10x+85