Week #6 - K (p. 107, 108) Perimeter and Area of Polygons/Circles

K2  p. 108

K1 p. 107

1.  P = 4(5) = 20 units;     A = 5 to the second power = 25 sq units 2.  P = 2(9) + 2(3) = 24 units      A = 9 x 3 = 27 sq units 3.  P = 4(1.3) = 5.2 units      A = (1.3) to the second power = 1.69 sq units 4.  P = 2(4 1/2) + 2(1/2) = 10 units      A = (4 1/2)(1/2) = 2 1/2 sq units 5a.  6 + 3 + 5 + 3 + 5 + 6 + 6 = 34 units 5b.  36 sq units                                   6.  False 5c.  15 sq units                                   7.  True 5d.  36 + 15 = 51 sq units

1.  A = 1/2 x 15 x 13 = 97 1/2 sq m 2.  60 sq cm 3.  A = 165 x 12 = 198 sq ft 4.  78 sq cm

Week #6 - L (p. 106, 36) Volume of Solids

L1 p. 106

L2 p. 36

1.  24 2.  5; 24 3.  120 4.  12 5.  27 6.  40 7.  14 8.  14 9.  20

Answers are left to right, top to bottom 187.15 cubic meters,    8780 cu m, 143.8 cu ft 2,556.9 cu m    1077.3 sq in,   20 cu cm 65.3 cu ft        90.5 cu m     180.6 cu m 523.7 cu cm        105.86  cu m