Level 3 PSLE
Yoko wants to make 14 small identical triangles and 20 large identical triangles using wire. She has made 12 small triangles and 7 large ones using 640 cm of wire. The length of wire she used for 3 large triangles is the same as that for 4 small stars.
  1. How many large triangles can be made with the same length of wire used to make 12 small triangles?
  2. What is the length of wire she needs to make the remaining triangles? Express your answer in cm.
4 m