0
A paver has the shape and dimensions shown below.
SEE: http://imgur.com/YYXZT for diagram.

(a)   Write an expression (in cm2) for the total surface area.
(b)   Factorise the expression in part (a).
(c)   Find one set of values for x and y so that the volume
(in cm2) has numerically the same value as the
surface area.

Notice: Undefined index: title in /home3/wmroi/public_html/merspi.com.au/qa-theme/NewMerspi/qa-theme.php on line 1251

1 Answer

0
a) TSA = 2x^2 + 4xy

b) TSA = 2x(x + 2y)

c) V = (x^2)y

V = TSA

(x^2)y = 2x^2 + 4xy

xy = 2x + 4y

xy - 4y = 2x

y(x - 4) = 2x

y = 2x / (x - 4)

x can be any real number greater than 4.

Notice: Undefined index: title in /home3/wmroi/public_html/merspi.com.au/qa-theme/NewMerspi/qa-theme.php on line 1251