What two ratios form a proportion? A 4/20 and 1/5 B. 4/20 and 2/5 C. 20/4 and 1/5 D. 20/4 and 2/5

A

Step-by-step explanation:

← divide numerator/ denominator by 4

=

Thus A form a proportion

≠

Thus B is not a proportion

← divide numerator/ denominator by 4

= ≠

Thus C is not a proportion

≠

Thus D is not a proportion

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

1/8 is left? add a bit more info plz