Triangles have 3 vertices. The total is 21 vertices. 21 / 3 = 7. He drew 7 triangles.
Answer:
True!
Step-by-step explanation:
Distributive property
To get this you substitute 7 for the x.
7/8(7)-1/2
49/8-1/2
49/8-4/8
45/8 is the value.
It is a little less than 90 degrees, which is a right angle, so it will be more acute
