Answer
36cm^{2}
Work Step by Step
$\sqrt 3^{2}+ 4^{2} $=5
p= 3+4+5=12
L.A = $12\times2$
L.A = 24
B= $\frac{1}{2}$($3\times4$)
B=6
S.A = L.A + 2B
= 24+2(6)
=24+ 12
= $36cm^{2}$
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 11 - Surface Area and Volume - Chapter Review - Page 752: 11
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