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Mathematics 20 Online
OpenStudy (anonymous):

A metal hollow bar whose cross section and dimension are shown below weighs 8x10^3 kg/m^3 and measure 2m in length ..determine the mass of the metal bar with the square hole section. 40cm -- square 60 cm -- hexagon

OpenStudy (anonymous):

ganeshie8 (ganeshie8):

step 1 : calculate the area of hexagon

ganeshie8 (ganeshie8):

knw how to calculate the area of hexagon, when u knw its side ?

OpenStudy (anonymous):

i don't know how.

ganeshie8 (ganeshie8):

its easy, u need to break it into triangles.

ganeshie8 (ganeshie8):

|dw:1393052705504:dw|

OpenStudy (anonymous):

|dw:1393052784328:dw|

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