Need help with this geometry assignment due soon smart people and mark Brainly
2 answers:
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
1) a+b+c=180 because if you take two right angle triangles and put them together you'll make a rectangle and thats 360, so half of the 360 is 180 which equals the two right triangles.
2) b and d are supplementary angles so if you add b and d they should equal 180, which is the measure of a straight line.
3) if you add c+a it should always equal d.
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
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