A solid is built from 1 cm cubes. It is 4 cubes long and 2 cubes deep. In every column of cubes, the height is the same in the back row as it is in the front row. Four diagrams show possible front elevations, each 4 squares wide. The numbers show the height, in unit squares, of each column, left to right.
A) 1, 1, 2, 2
B) 2, 2, 1, 1
C) 2, 1, 1, 2
D) 1, 2, 2, 1
The solid's two tallest columns (height 2) are on the left, and its two shortest columns (height 1) are on the right.
(a)Which diagram, A, B, C or D, is the correct front elevation of the solid?(1)
- A) 1, 1, 2, 2
- B) 2, 2, 1, 1
- C) 2, 1, 1, 2
- D) 1, 2, 2, 1
(b)How many unit cubes make up the whole solid?(1)
(Total for Question 12 is 2 marks)