Page 118 - NUMINO Challenge_B1
P. 118
Problem solving Key Points
1 As shown below, a square is divided into 4 The sum of 4 widths
rectangles of equal size. If the perimeter of each of the rectangles is
rectangle is 30 cm, what is the perimeter of the equal to a side of
square? the square.
2 A rectangular piece of paper that is 12 cm long When the rectangle
and 10 cm wide is cut into 12 different rectangles is cut vertically or
along the dotted lines. Find the sum of the horizontally once,
perimeters of the 12 rectangles. two more sides of
the same length will
12 cm be created.
10 cm
115Measurement
1 As shown below, a square is divided into 4 The sum of 4 widths
rectangles of equal size. If the perimeter of each of the rectangles is
rectangle is 30 cm, what is the perimeter of the equal to a side of
square? the square.
2 A rectangular piece of paper that is 12 cm long When the rectangle
and 10 cm wide is cut into 12 different rectangles is cut vertically or
along the dotted lines. Find the sum of the horizontally once,
perimeters of the 12 rectangles. two more sides of
the same length will
12 cm be created.
10 cm
115Measurement
