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How much will the area increase if the height is increased by 3?
If you are referring to the area of a rectangle, it will increase by 3 times the width. The area of a triangle will increase by 3 times 1/2 the base or, in other words, 1 1/2 times the base. (This answer presumes you mean the height increases by three units, such as inches or millimeters, not by three times the original height.)
What is the lateral area of a pyramid?
1/2 times the perimeter of the base times slant height
Suppose you know the perimeter and the height of an equilateral triangle explain how you would find the area of the triangle.?
The base is one third of the perimeter, half of the base times the height is the area.
Do you need the height to find the perimeter of a triangle?
Some times you do. If you know all of the side lengths, then you can just add them to find the perimeter, if one of the sides is the same as the height, then you may need to find it.
What are the area and perimeter of a trapezoid?
The perimeter of a trapezoid is the sum of its bases and legs. The area of a trapezoid is the height times (base 1 + base 2) divided by 2
