Page 117 - NUMINO Challenge_C1
P. 117
Type 13-1 A Square inside a Right Isosceles Triangle
Triangles A and B are right isosceles triangles of equal size.
If the colored square in triangle A has an area of 27, what is the area
of the colored square in triangle B?
AB
1 If you draw a dotted line through the square in triangle A, you get four
triangles of equal size. What is the area of triangle A?
A
2 Divide triangle B into nine triangles of the same size and shape, and find
the area of the colored square.
B
114 NUMINO Challenge C1
Triangles A and B are right isosceles triangles of equal size.
If the colored square in triangle A has an area of 27, what is the area
of the colored square in triangle B?
AB
1 If you draw a dotted line through the square in triangle A, you get four
triangles of equal size. What is the area of triangle A?
A
2 Divide triangle B into nine triangles of the same size and shape, and find
the area of the colored square.
B
114 NUMINO Challenge C1
