Step-by-step explanation:
The answer is mentioned above.
This problem should not give you too much difficulty. The area of a triangle is (LxH)/2. The area of a rectangle is LxH. Calculate the area of each triangle and the three rectangles.
When added together, you should get 75.75cm².
I would show the work for you, but just work through it slowly, and you should get the same thing.
The area of a rectangle is the product of its dimensions
The dimensions of the rectangle are:
and 
The area is given as:

Express 125 as 5^3

Apply difference of cubes


The area of a rectangle is:

So, by comparison:


Read more about areas at:
brainly.com/question/3518080
Answer:
okay nice to know sir.
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
x is the original grade, divided by 2 or half, then 20 points are added to that score.