Respuesta :

i think the answer is 21

Answer:

The complementary angle of

-6 degrees is 84

-21 degrees is 69

Step-by-step explanation:

to solve this question complementary angles sum up to 90 degrees,  when 2 angles come together to form a 90 degree right angles they are complementary.

90-6= (84)

90-21=(69)

Hope my work helped, good luck on your work and have a great day :)