4). (3 points)|
The staircase below is 4 units tall
and contains 10 unit squares.
Suppose the staircase were extended
until it was 15 units tall.
How many unit squares would it contain all together?
5). (3 points)
ABCD is a square with area = 36 square meters.
AEFG is a rectangle with area = 36 square meters.
E is the midpoint of AB.
What is the perimeter of AEFG?