Page 18 - NUMINO Challenge_A2
P. 18
Problem solving Key Points
1 Find the perimeter of the colored figure below. The perimeter is
equal to the sum of
1 cm the lengths of the
1 cm bold lines.
2 Two figures are each cut out from square pieces of The length of the
paper with sides of 5 cm as shown below. Find the inverted portion in
perimeter of each figure. both figures is 4 cm.
1 cm 1 cm
5 cm 5 cm
5 cm 5 cm
15Measurement
1 Find the perimeter of the colored figure below. The perimeter is
equal to the sum of
1 cm the lengths of the
1 cm bold lines.
2 Two figures are each cut out from square pieces of The length of the
paper with sides of 5 cm as shown below. Find the inverted portion in
perimeter of each figure. both figures is 4 cm.
1 cm 1 cm
5 cm 5 cm
5 cm 5 cm
15Measurement
