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lora16 [44]
2 years ago
8

I need help with this

Mathematics
1 answer:
Flauer [41]2 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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