18. The cuboid shown below is made of 3 unit cubes like the one to its left: If the surface area of the cube is 18 sq. Cm, what is the surface area of the cuboid in sq. Cm?A)42b)48c)54d)81

The surface area of the cuboid is 42 sq.cm.

Step-by-step explanation:

The cuboid  is made of 3 unit cubes like the one to its left

Surface area of cube =

Where a is the side of cube

We are given that surface area of cube is 18 sq.cm.

So,

Now these 3 cubes are joined together to form cuboid

So, Length of cuboid =

Breadth of cuboid =

Height of cuboid =

Surface area of cuboid =

Hence the surface area of the cuboid is 42 sq.cm.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

the answer would be c