32cm
2.1.1 The area of one side of a stocking (without the triangular pieces) is 355,25 cm2.
Calculate the area of the fabric that is left over if Petru cuts ONE complete stocking from two rectangular pieces of fabric.
You may use the following formula:
Area of rectangle = length x width (6)
2.1.2 Calculate the total area of the triangular shapes needed to decorate ONE stocking.
You may use the following formula:
Area of triangle = 1/2 x base x height (4)
2.1.3 It takes Petru 18 minutes to cut, decorate and hand-stitch one stocking.
Determine at what time she will finish making NINE stockings if she starts at
08:25. (4)
2.2 Petru buys rectangular boxes with reels of thread for stitching the stockings. The radius of a
cylindrical reel is 1 1,5 mm.
Determine the maximum number of reels of thread that will fit exactly into a rectangular box
that is 120 mm wide and 195 mm long. Show ALL calculations. (5)
2.3.1 Calculate (to the nearest cm2) the exterior surface area of the lid that needs to be painted.
You may use the following formula:
Painted exterior surface area of lid = (r + 2h) where = 3,142; r is the radius and h
is the height of the lid. (4)
2.3.2 Determine (to the nearest cm) the height of the water in the jar before the lid is
placed on the jar.
You may use the following formula: volume of the water (in cm )
Height of the water in the jar = rx (radius/
I cm3 = I mt (6)
2.3.3 Use the conversions below to answer the following questions.
Determine what fraction of a teaspoon equals ONE dash. (2)
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