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Anna71 [15]
2 years ago
10

Based on the figure, select all true equations​

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
3 0

Answer:

a) no

b) true

c) true

d) no

e) true

f) true

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Which postulate or theorem justifies this statement: ∠ 11 + ∠ 10 = 180°
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Answer:

Same-side Interior Angles theorem justifies ∠ 11 + ∠ 10 =180°

Step-by-step explanation:

To Prove:

∠ 11 + ∠ 10 =180°

Proof:

Consider lines are  Parallel,then

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∴ ∠ 10 = ∠ 12  say (equation 1)

Now by Linear Pair postulate we have,

∴ ∠ 11 + ∠ 12 = 180° say (equation 2)

Now by replacing ∠12 by ∠ 10 from equation 1 in equation 2 we get

∴ ∠ 11 + ∠ 10 = 180°

Hence proved the above statement.

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