25 equilateral triangles with the same size were arranged as shown in the figure below.
Answer the following questions.
(1) How many of same rhombus as the rhombus for which 2 equilateral triangles were used are there in this figure altogether?
(2) How many of same trapezoid as the trapezoid for which 3 equilateral triangles were used are there in this figure altogether?
Answer
(1) Rhombus 30 pieces
(2) Trapezoid 48 pieces
Solution
(1)
(2)
Answer the following questions.
(1) How many of same rhombus as the rhombus for which 2 equilateral triangles were used are there in this figure altogether?
(2) How many of same trapezoid as the trapezoid for which 3 equilateral triangles were used are there in this figure altogether?
Answer
(1) Rhombus 30 pieces
(2) Trapezoid 48 pieces
Solution
(1)
(2)
