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Marysya12 [62]
2 years ago
11

If ∠1 = 3x, ∠2 = 5x + 18, and s ⊥ r, find m∠1.

Mathematics
2 answers:
Bingel [31]2 years ago
7 0

I hope it will help you.

marysya [2.9K]2 years ago
7 0

Answer:

x = 9

Step-by-step explanation:

angle <1 and angle <2 is complementary and their sum is 90 degrees

3x + 5x + 18 = 90 add like terms

8x + 18 = 90 subtract 18 from both sides

8x = 72 divide both sides by 8

x = 9 to find the measure of angle <1 replace x with the value we found

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