Use gradient formula, rise over run.
y2-y1/x2-x1
Answer:
1. a + b + c = 180
2. b + d = 180
3. d = a + c
Step-by-step explanation:
1. a + b + c = 180:
Angles in a triangle add up to 180
2. b + d = 180:
Angles in a straight line equal 180 because they are supplementary angles
3. d = a + c:
ΔACD is an exterior angle, and ΔACB is interior adjacent, hence ∠a and ∠c add up to ∠d
Answer:
14. 13.65
15. 7.53
17. 0.0371
18. 0.81
19. 0.864
Here are some answers! Hope this helps
Is the sum of 3/10 and 68/100 is =
0.98