Perimeter is adding all the outside sides together 1. 7+7+5 14+5= 19 m 3. The dashes mean that the sides are equal so each side is 5 5+5+5+5 10+10= 20cm Last question. The sides are 5,3,?,2,1,3,2,? Look at the top add 5+2 this will give you the length of the whole side this will let you figure out the bottom missing side 5+2=7 the bottom whole peice will be 7 also so to find the missing peice you will subtract 7-1 the missing piece measure is 6
5,3,7,2,1,3,2,?
Do the same to the right side add 3+2 This will give you the total length of the left and right side (5) Now subtract 3 from it to find the missing peice 5-3=2 5,3,6,2,1,3,2,2 Now you have all the lengths of the sides Add them together 5+3+6+2+1+3+2+2 8+6+3+3+4 14+6+4 20+4= 24m *don't forget to write down in what unit it is measured in!!* Hope I explained it clearly
