Question
Find the total surface area of the following triangular pyramid. Each triangle is congruent, with a base of 7 ft., and a height of 6 ft.
Hint:
The surface area of triangular Pyramid = 
where p is the perimeter of the base , B is area of the base and l is the slant height of the pyramid.
The correct answer is:
Given the base is an equilateral triangle with side 7 ft and slant height from diagram is 6 ft
and base is rectangle with base 7 ft and height 6 ft
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From the given figure, we can observe that the plane cuts the prism making an angle of 0 degrees with the base of the prism. Thus, we’ll get a cross section which will be similar to the base of the prism, i.e., a triangle.
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Describe the cross section.
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