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briana.img
 one year ago
Help me find the height of this triangular prism?
briana.img
 one year ago
Help me find the height of this triangular prism?

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.1surface area = area of 3 rectangles + area of the 2 triangles

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella sooo 48.735 = 3(15.12) + 2(???)

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella where do we go from therE?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1Find the area of a triangle then this = 0.5 * 2.7 * height of triangle solve for height

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella so confused on that part where did 0.5 come from?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1area of triangle = half * base*height

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 I don't like fractions  I always use decimals if possible

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella eeeerm i'm completely lost

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1well work out the area of 2 triangles first 2* A = 48.735  3(15.12) = ?

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella why the 2*A= ????

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1A = area of one triangle

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1so 2A = 48.73545.36 = 3.375 so the area of 1 triangle = 3.375 / 2 = 1.6875

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1Now using the formula for the area of a triangle 1.6875 = 0.5 * 2.7 * h where h = height of the triangle ( = height of the prism) solve for h

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella 1.25???

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1h = 1.6875 / (0.5*2.7) = 1.25

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1gotta go  its very late here in the UK bye!
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