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OpenStudy (anonymous):
Please help me! Will give medal :)
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OpenStudy (anonymous):
OpenStudy (anonymous):
@hoblos
OpenStudy (hoblos):
the surface area is the sum of the areas of all the faces how many face does this prism have ?
OpenStudy (anonymous):
5 faces
OpenStudy (hoblos):
great we have to calculate the area of each can you ?
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OpenStudy (anonymous):
umm....maybe can u explain
OpenStudy (anonymous):
[Base Area] + 1/2 × Perimeter × [Slant Length]
OpenStudy (hoblos):
we have 5 faces, 3 rectangles and 2 triangles since the triangle is equilateral, thus all it's sides equal 5 |dw:1396643510294:dw| what is the area of one rectangle ? and that of one triangle ?
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