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3 years ago

I need help with this

Mathematics

1 answer:

Flauer [41]3 years ago

6 0

The given angles are complementary, therefore:

(5r + 5) + (8r -6) = 90°

13r - 1 = 90
13r - 1 + 1 = 90 + 1
13r = 91

13r/13 = 91/13

r = 7

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