Use 48 cm wire to form a triangle. The length ratio of the three sides of the triangle is 3:4:5. What is the shortest side?

Use 48 cm wire to form a triangle. The length ratio of the three sides of the triangle is 3:4:5. What is the shortest side?

48 ÷（3+4+5）×3
= 48÷12×3
=4×3
=12 cm

The ratio of three sides of a triangle is 4:5:6. How many three sides of each triangle are two identical triangles made of 150cm iron wire?

A: the three sides of each triangle are 20 cm, 25 cm and 30 cm respectively

Use a 42 cm wire to form a triangle. If the length of one side is 13 cm, the length of the longest side of the triangle

According to the definition that the sum of any two sides of a triangle is greater than the third side, the length of the longest side is 20 cm