19. The formula
is used to solve the triangle problem in the preceding frame.
Carefully study the step-by-step solution which follows.
First, get the formula on paper ...
Now substitute the known values,
altitude = 9, base = 12, or ...
Next, square and add the known
values as indicated ...
Then extract the square root to
find the value of "c" ...
20. Solve for the unknown side of the triangle below.
Place your answer in the space provided.
Refer to frame 17 for the correct formula, then
refer to frame 19 for step-by-step procedures.
__________________Your answer
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IT0350
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