Question

Shape 1 ∆ Shape 2∆∆∆ Shape 3 ∆∆∆∆∆∆ Shape 4∆∆∆∆∆∆∆∆∆∆ 1. Describe what is happening as the shapes are growing. 2. How many toothpicks will used in shape 7? 3. Write the algebraic expression for the numbers of toothpicks in a given shape.​

Answer 1

i dont know these question

Answer 2

Step-by-step explanation:

1. the no. of triangles are increasing

2.21

3