Triangles have 3 vertices. The total is 21 vertices. 21 / 3 = 7. He drew 7 triangles.
Answer:
the answer is about 1.2
Step-by-step explanation:
Answer:
140 ways
Step-by-step explanation:
4 x 5 x 7 = 140
Answer:
20??? wow I feel stupid I forgot how to do everything
Answer:
B or the second one i think
Step-by-step explanation: