A ladder leans against a building. The angle of elevation of the ladder is 70°. The top of the ladder is 25 ft from the ground.
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Mathematical processes are the steps used to determine the result of operations
- The perimeter of the rectangle is
- The area of the rectangle is
The dimension of the rectangle is given as:
<u>(1) The perimeter of the triangle</u>
This is the sum of the side lengths of the rectangle.
So, we have:
This gives
Collect like terms
Open brackets
Hence, the perimeter of the rectangle is
<u>(2) The area of the triangle</u>
This is the product of the dimensions of the rectangle.
So, we have:
This gives
Open brackets
Collect like terms
Hence, the area of the rectangle is
Read more about areas and perimeters at:
