Subtract.
2 answers:
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Answer:
Area = square feet
Step-by-step explanation:
The area of a rectangle is given by the formula:
A = length * width
Where length is 91 feet and width is feet
Before we do the multiplication, we have to change the mixed number [width] into an improper fraction by using the rule shown below:
Hence,
So, the area is:
Area = square feet
<h2><u>Answer:</u></h2>
120
<h2><u>Step-by-step explanation:</u></h2><h3>Over all plan: </h3>This is a square pyramid so you know that all four triangular sides are congruent. This means that to solve this problem, which is asking you to find the surface area, you need to find the area of one of these triangles, and multiply that by 4. Next you need to find the area of the square and add it to the areas of the triangles.
Detailed Steps:
- You know the formula to finding the area of the triangle is
where b is the base length and h is the height. We are given b = 6 and h = 7 in your question.
- <u>Plug in the values into the formula.</u> You get:
- <u>Simplify.</u> You get:
- Next Multiply this by 4 to find out the total area of all the triangular faces.
- 21 x 4 = 84
- Now find the area of the square.
- The formula for the area of a square is
where s is the given value of a side.
Plug in your value,
36+84=120.
120 is your final answer.
hope this helped
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