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a.    Calculate the length of the hypotenuse in the triangle shown below, if AB = 2m and BC = 6m.

b.    Calculate the length of side PQ if QR = 10cm and PR = 4 cm.

c.    i.    Find the surface area of a cardboard box whose length, breadth and height is 12m, 5m and 8m, respectively.

      ii.      What is the name of the shape for this cardboard box?

 

 

in Mathematics by Diamond (40,192 points) | 84 views

1 Answer

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a.    AC = √((2^2) + (6^2)) = 6.32 m2

b.    PQ^2 = √((10^2) - (4^2)) = 9.17 cm2

c.    i.    Rectangular prism

       ii.   Surface area = 2((12 x 5) + (5 x 8) + (8 x 12)) = 2 x 196 = 392 m2
by Diamond (40,192 points)

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