Question

Find the total surface area of this cuboid.
5 cm
2.3 cm
7.5 cm​

Answer 1

Explanation:

5cm

SA=6×S^2

=6×5^2

=6×25

=150cm^2

2.3cm

SA=6×2.3^2

=6×5.29

=31.74cm^2

7.5cm

SA=6×7.5^2

=6×56.25

=337.5cm^2

Answer 2

132.5cmsquared

Explanation:

front-5*7.5=37.5

back- same as front

right-2.3*5=11.5

left- same as right

top-7.5*2.3=17.25

bottom-same as top

add all together= 132.5cmsquared