Lesson Steps:

Answer question 20.

Answer:

So first because the squares are all the same, you would divide 196 by four (196/4) this should give you 49. Again be cause its a square the sides are equal. This makes each edge 7 because 7×7=49. Now the two squares in the middle have two half sides. Now you add all the sides. (7×8)+(3.5×4)= (56)+(40)= 70.

Grade: 4
Level: Primary
Subject: Math
Topic: Area and perimeter