Answer:
280cm squared
Step-by-step explanation:
By adding a 2cm wooden board, Gavin is adding 4 cm to each side, os the new sides would be 14 and 20. 14*20=280 cm squared.
28 x .15 = 4.2
28 + 4.2 = 32.2 <---- ANSWER
Hope this helps :)
Answer:
here my answer
Step-by-step explanation:
hope this helps