Explanation:
Angles 1 & 2 have to equal 180. So, if ∠1 is equal to 140, ∠2 is equal to 40 because 140 + 40 = 180.
So far... we know that:
Angles 2, 9, and 11 make a triangle, a triangles "magic number" is also 180. To get 180, you must add up all of the angles. Well... we don't know ∠11 so to find it, you subtract 40 & 80 from 180. 180 - 80 - 40 = 60.
Answer:
∠2 = 40
∠11 = 60
Answer:
3x(exponent 2) - 10x -400
Hope this helps!
Answer:
b=A/h
Step-by-step explanation:
In order to solve for b, we need to isolate b. We can do this by dividing both sides by h:
A = bh
A/h=b
b=A/h
Answer:
0
Step-by-step explanation: 3-5=-2+6=4-4=0
