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soldier1979 [14.2K]
3 years ago
5

Marking as brainliest

Mathematics
2 answers:
bija089 [108]3 years ago
7 0

Answer:

x = 13.08 ft

Step-by-step explanation:

We need to use pythagoras theorem as this is a right angled triangle:

a^2 + b^2 = c^2

As we do not know one of the sides, we need to change the subject of the equation to either a or b:

b^2 = c^2 - a^2

Substitute the values in:

b^2 = 14^2 - 5^2

b^2 = 196- 25\\b^2 = 171\\

Now square root both sides to find b:

\sqrt{b^2} = \sqrt{171}

b = \sqrt{171}

b = 13.08

x = 13.08 ft

Hope this helps!

fredd [130]3 years ago
5 0

Answer:

13.1 (3sf)

Step-by-step explanation:

14 ^2 - 5^2 = 171

root 171 = 13.1 (3sf)

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