Suppose you have three concentric circles and are looking at the arc lengths of a 20° angle of each. If the radii of the circles have a ratio of 2:3:9, what is the ratio of the arc lengths? The ratio of the arc lengths will be 2:__:__
(use ascending order. Type integers or simplified fractions.) ​

dd

step-by-step explanation:

dd

image result for what is another name for consecutive interior angles? ​

when two lines are crossed by another line (called the transversal): the pairs of angles on one side of the transversal but inside the two lines are called consecutive interior angles. in this example, these are consecutive interior angles: d and f.

step-by-step explanation:

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°