Page 134 - NUMINO Challenge_C1
P. 134
Problem solving Key Points
1 You want to form a rectangle using two As the difference
4 cm, four 5 cm, and two 6 cm sticks. What is between the width
the greatest area of the rectangle that can be and the length
formed by using these sticks? becomes smaller,
the area of a
rectangle becomes
greater.
4 cm 5 cm 6 cm
2 In Susan's backyard, there is a garden that has a As the difference
rectangular shape, with an area of 40 cm2. This between the width
garden has the greatest perimeter among the and the length
rectangular gardens with the same area. What are becomes greater,
the dimensions of this garden? Note that the the perimeter of a
width is longer than the length, and both are rectangle with a
natural numbers. fixed area becomes
greater.
131Measurement
1 You want to form a rectangle using two As the difference
4 cm, four 5 cm, and two 6 cm sticks. What is between the width
the greatest area of the rectangle that can be and the length
formed by using these sticks? becomes smaller,
the area of a
rectangle becomes
greater.
4 cm 5 cm 6 cm
2 In Susan's backyard, there is a garden that has a As the difference
rectangular shape, with an area of 40 cm2. This between the width
garden has the greatest perimeter among the and the length
rectangular gardens with the same area. What are becomes greater,
the dimensions of this garden? Note that the the perimeter of a
width is longer than the length, and both are rectangle with a
natural numbers. fixed area becomes
greater.
131Measurement
