Answer:
1) 20 cm
2) 22.4 in
3) 15 ft
Step-by-step explanation:
For this question, you have to use the <u>Pythagorean theorem.</u>
Why?
Well, because it is a <u><em>right triangle</em></u> and you have <u><em>2 sides given</em></u> and you want to find the third side.
Now let's solve this problem!
<u>For number 1 we have:</u>
a = 16 cm and B = 12 cm
you need to find the 3rd side which is c (aka the hypothenuse)
so let's write the equation:
a^2 + b^2 = c^2
Then we substitute with what we have given.
16^2 + 12^2 = c^2
Using a calculator solve the equation
400 = c^2
Now we have to find the square root from both sides of the equation.
c = 20 cm (That's the final answer)
<u>For number 2 we have:</u>
a = 10 in and b = 20 in
we follow the same steps as in number 1
a^2 + b^2 = c^2
10^2 + 20^2 = c^2
500 = c^2
c = 22.4 in (That's the final answer)
<u>For number 3 we have:</u>
a = 9 ft and b = 12 ft
a^2 + b^2 = c^2
9^2 + 12^2 = c^2
225 = c^2
c = 15 ft (That's the final answer)
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