Question

find area whose sides are 39cm 25cm 56cm​

Answer 1

Answer:

Since you didn't mention the figure type...i taking it as a cuboid becouse 3 different dimensions is given here...

So, if you want total surface area;

$surface \: area = 2(lb + bh + hl)$

length(l)=39cm

breadth(b)=25cm

hieght(h)=56cm

=2[39*25+25*56+56*39]

=2[975+1400+2184]

=2[2375+2184]

=2[4559]

=9118 sq. cm

Now, for lateral surface area;

$lateral surface area = 2h(l + b)$

=2*56[39+25]

=112(39+25)

=112(39+25)=112*64

=7168 sq. cm

HOPE IT HELPS...HAVE A NICE DAY