A regular triangular pyramid has a base and lateral faces that are congruent equilateral triangles. It has a lateral surface area of 72 square centimeters. What is the surface area of the regular triangular pyramid?

The total surface area of the triangular pyramid is 96\,cm^2

Step-by-step explanation:

ince the triangular pyramid has equilateral triangles as its faces, this means that all of its faces are equal, including its triangular base, because the base is a triangle that has for sides the sides of the lateral triangles (which are equilateral triangles, i.e. all sides are equal in size)

So recall that such type of pyramid has a total of 4 faces, three of them are lateral and the fourth one is the base.

The information in the problem tells us that the lateral surface of the pyramid is 72 , that means that the addition of its three lateral triangles renders 72  ,

We can then find what is the area of each of the three triangles by simply dividing this number by 3 (recall that all faces in the pyramid are equal)

Each triangular face has an

Then, the total surface area of the triangular pyramid is the addition of the area of its four faces. That is:

Total surface are

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answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

the degrees would remain the same ( the number to the left of the decimal point.

the multiply the decimal by 60 to get the minutes and use the numbers to the left of the decimal point.

then multiply the decimal portion of that by 60 for the seconds and round off as needed.

39 .956652

the 39 remains the degrees.

the minutes = 0.956652 x 60 = 57.39912

the minutes = 57

the seconds = 0.39912 x 60 = 23.95 = 24 ( rounded to nearest tenth)

so 39.956652 = 39 degrees, 57 minutes and 24 seconds

-75.159809

the -75 remains the degrees

the minutes = 0.159809 x 60 = 9.58854

the minutes = 9

the seconds = 0.58854 x 60 = 35.31, rounded to nearest tenth = 35.3 seconds

so -75.159809 = -75 degrees, 9 minutes and 35.3 seconds.

the first coordinate is north or south, since it it positive it is north.

the second number is east or west, because it is negative it is west.

39 degrees, 57 minutes and 24 seconds n

-75 degrees, 9 minutes and 35.3 seconds w