Video Transcript
Which of the following is the
side elevation of the given shape?
In this question, we’re asked
to find the side elevation, which means that we need to produce a
two-dimensional drawing of this three-dimensional shape. We’re usually given the
direction that we take as this side. Notice that if we wanted to
draw the view from above, that’s called the plan view. It can be helpful to shade in
what we’d see if we looked from the side. So, we’d see this rectangle at
the bottom. That’s four centimeters by one
centimeter. But we’d also see another part
of this shape as well, this flat side of the prism.
Although when we look at this
three-dimensional shape, we can see that this face would be slanted, that is,
it’s not horizontal or vertical, but when we draw it, we’ll draw it as a
rectangle. The height from the bottom of
the shape to the top is three centimeters, so the height of the rectangle in the
elevation will also be three centimeters. Our answer for the side
elevation is therefore that given in option (E). But let’s have a quick look at
some of the other options we were given.
Let’s look at option (A). It is, in fact, the front
elevation of this shape as this is what we’d see if we looked at this
three-dimensional shape from the front. As we were looking for the side
elevation, however, it’s not correct for the answer. In option (B), we were given a
square of four centimeters by four centimeters. This is, in fact, the plan of
the given shape. It’s what we’d see if we looked
at the three-dimensional shape from above. But it’s incorrect for the side
elevation of the given shape. Option (C) is also
incorrect. It’s a triangle. And option (D) is also
incorrect. Option (D) is what we’d see if
we looked at this shape from the back. We can give our answer here as
option (E).
