Alamp post is 10 ft tall and casts a shadow. the distance from the top of the lamp post to the tip of the shadow is 20 ft. what is the angle of elevation to the top of the lamp post?

30°

Step-by-step explanation:

Sin= 10/20

Sin= 0.5

Use your calculator then and type in 0.5 and hit the sin(-1) button and you get your answer.

add an image

step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.