It is 288 cm^2.
first you find the area of the base and then you find the area one side of the pyramid an you time it with 3 if it is a triangular pyramid or 4 if it is a square pyramid
False, the prism can be of any length.
The first comprises one rectangular face and four triangular faces whereas the second has two triangular and three rectangular faces.
SA equals pi times the radius squared
total surface area is all of the area. ex. for a square pyramid it would be the area of the square on the bottom and the four triangle sides lateral surface area is all the surface area EXCEPT the base. ex. for a square pyramid it would be the area of the four sides of the pyramid. the bottom square is NOT included. for a triangular prism it would be the area of the three rectangle sides, NOT the two triangular sides
As stated, the question cannot be answered. The pyramid could be irregular so that its triangular faces have different areas. If it were a regular pyramid, then with a square base it has four triangular faces whose combined area is 189 - 49 = 140 cm2 So each triangular face has an area of 140/4 = 35 cm2
It is 288 cm^2.
It is the sum of the areas of its four faces.
the answer is 120
Surface area of a triangular pyramid: SA = 1/2 as + 3/2 sl a = altitude of the base triangle s = side of the triangle l = slant height of the pyramid.
first you find the area of the base and then you find the area one side of the pyramid an you time it with 3 if it is a triangular pyramid or 4 if it is a square pyramid
The volume for any pyramid = 1/3*base area*perpendicular height
4x5=20 therfore 20 square metres Each triangular face is 25 sq.m. Therefore the total surface area of the four triangular faces = 100 square metres. If the square base has to be included, add another 25 square metres.
It will be: 4*30mm2 = 120mm2
False, the prism can be of any length.
Surface area of any pyramid is 1/2Pl + B; where P=perimeter of the base, l=slant height and B= Area of the base.