The sides of a rectangle are increased by a scale factor of 4. The perimeter of the smaller rectangle is 20cm. What is the perimeter of the larger rectangle?
320 cm
80 cm
120 cm
60 cm
2. A right triangle has an area of 24 ft squared. The dimensions of the triangle are increased by a scale factor of 6. What is the area of the new triangle?
48 ft squared
72 ft squared
144 ft squared
864 ft squared
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