Extending the deck

This task is about working out area.

Question 1Change answer

The Jacobs have a diamond-shaped deck. Its measurements are shown in Diagram 1.

Diamond-deck-1.png

a)  What is the total area of the deck?  m2

Question 1Change answer

They decide to extend the deck on one side. This is shown by the thick dotted lines () in Diagram 2.

Diamond-deck-2.png

b)  What is the total area of the deck now?  m2