An architect is trying to design a short staircase. His plan is shown in the diagram below, where all the vertical and horizontal lines meet at right angles.

In the figure below, $AB = BC$ and $\angle ABC=90^\circ.$ What is the height of the third step $($marked $HI)?$

**Note:** No variables or calculations are needed to solve this problem.

×

Problem Loading...

Note Loading...

Set Loading...