Answer:
Step-by-step explanation:
Answer:
-3(22-d) ?
Step-by-step explanation:
I hope this is right please let me know
8 as you round up 405 to 400 and divide by 50 and get 8
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
