Answer:
4.) Area : 133.12 m^2
Perimeter : 46.56 m
5.) Area : 260.52 cm^2
Perimeter : 64.84 cm
7.) Area : 245 ft^2
Perimeter : 42 + 14√2 ft
8.) Area : 196.48 ft^2
Perimeter : 25.12 + 2√208 ft
Explanation:
When finding the perimeter and the area split the shape into as many easy shapes as possible then solve for those and add. When doing perimeter don't forget to get rid of the part of the perimeter if it is not facing out and is touching other things.
ex.
4.) 9 times 12 = 108
{[(4)^2]3.14}/2 = 25.12
108 + 25.12 = 133.12 (Area)
12 + 9 + 12 + 9 - 8 = 34
{[(4)2]3.14}/2 = 12.56
34 + 12.56 = 46.56
hope this helps