Let angleD be an acute angle such that sin D = 0.19. Use a calculator to approximate the measure of angleD to the nearest tenth of a degree.
measure of angle D = °

We have been given that angle D is an acute angle such that . We are asked to find the measure of angle D using calculator.

We will use arcsin to solve for angle D.

Using calculator, we will get:

Upon rounding to nearest tenth of degree, we will get:

Therefore, the measure of angle D is approximately .

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

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step-by-step explanation: