If (a+b)(a-b)=21,a+b=7 and a-b=3 what Is the value of a
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Answer:
See attachment for rectangle
Step-by-step explanation:
Given
Required
Draw the rectangle
First, we calculate the distance between A and B using distance formula;
So, we have:
The above represents the length of the triangle.
Next, calculate the width using:
Divide both sides by 2
This implies that, the width of the rectangle is 6 units.
We have:
Since A and B are at the upper left and right, then the ther two points are below.
6 units below each of the above point are:
=>
=>
Hence, the points of the rectangle are:
<em>See attachment for rectangle</em>
