The mail is delivered each day between 1 p. m. and 3: 30 p. m. today is your birthday and you are expecting a package in the mail from your aunt. while waiting for the delivery at the door, the phone rings. you are away from the door for 15 minutes. what is the probability that you missed the delivery?
1 pm to 3:30pm= 150 mins.
15 minutes is 10% of 150 minutes.
so far i think you have the right thing going for you just remember soh cah toh
sine over hypotenuse
cosine equals adjacent
tangent over hypotenuse
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.