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Maksim231197 [3]
3 years ago
7

Given that the measure of ∠x is 73°, and the measure of ∠y is 90°, find the measure of ∠z.

Mathematics
1 answer:
Westkost [7]3 years ago
8 0

Answer:

The measure of z is 17

Step-by-step explanation:

90 plus 73 equals 163

180 minus 163 equals 17

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name the theorem or postulate that lets you conclude triangle ABD is congruent to triangle CBD with only one additional step
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The answer is the first one ⇒ AAS

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∵ DB ⊥ AC

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∵ m∠A = m∠C ⇒ (2) given (from figure)

∵ DB is a common side in the two Δ ⇒ (3)

From (1) , (2) and (3)

∴ Δ ABD is congruent to Δ CBD ⇒ AAS

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