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Lilit [14]
3 years ago
5

Need help with this geometry assignment due soon smart people and mark Brainly

Mathematics
2 answers:
Harrizon [31]3 years ago
5 0

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.

skad [1K]3 years ago
3 0

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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