Answer: The answer is 21
Step-by-step explanation:
Lets look at number one. 31 + 27 + 29
We can go ahead and break it down if you want.
What's 31 + 27? That equals 58.
Now, we still aren't done with the problem because now we need to add 29.
29+58= 87
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➷ Pythagoras' theorem:
b^2 = c^2 - a^2
Substitute in the values:
b^2 = 13^2 - 12^2
b^2 = 25
Square root it
b = 5km
The answer is option B. 5km
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➶ Hope This Helps You!
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Work is equal to Force*distance so 10n*5m = 50nm = 50joules