A method of estimating the number of people participating in a march is to assign someone to a spot on the sidewalk with the job
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Answer:
Part 1) The perimeter is
Part 2) The diagonal is
Step-by-step explanation:
<u><em>The question in English is</em></u>
You have a rectangle whose base is twice the height and its area is 12
square centimeters. Calculate the perimeter of the rectangle and its diagonal
step 1
Find the dimensions of rectangle
we know that
The area of rectangle is equal to
so
----> equation A
The base is twice the height
so
----> equation B
substitute equation B in equation A
Find the value of b
step 2
Find the perimeter of rectangle
The perimeter is given by
substitute
step 3
Find the diagonal of rectangle
Applying the Pythagorean Theorem
substitute