Question

Please answer quickly check the image below

Answer 1

C.

Number of half-unit cubes = 18

V = 2 1/4 cubic units

volume of rectangle: length * width * height

`\hookrightarrow 1(1)/(2) * 1(1)/(2) *1`

`\hookrightarrow (3)/(2) * (3)/(2) *1`

`\hookrightarrow (9)/(4)`

`\hookrightarrow 2(1)/(4)`

To find number of half units cubes:

volume * 8 half-unit in every cube

`\rightarrow 2(1)/(4) *8`

`\rightarrow \sf 18`