Question

Find the unknowns in the following figures

Answer 1

$\: \: 1. \: x = 7 \: cm\\ \: \: 2. \: y =120° \\ \: \: \: \: 3. \: z = 10 \: cm\\ \: \: \: \: 4. \:x = 12 \: cm \\ \: \: 5. \: y = 249°\\ 6. \: x = 20°\\ 7. \:x = 90°\\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 8. \: x = 8 \: cm \:, \: y = 15°$

Step-by-step explanation:

$use \: \: \boxed{ \theta = \frac{l}{r} }$