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svet-max [94.6K]
3 years ago
6

The triangle shown is a right triangle. Create the equation to be used to find the missing lengths.

Mathematics
1 answer:
telo118 [61]3 years ago
6 0
The equation used to find the missing lengths:
9 = __SR (5^2 + x^2)__
As long as it is a right triangle, this is called the Pythagorean Theorem
{9}^{2}  =  {x}^{2}  +  {5}^{2}  \\  \sqrt{ {9}^{2} }  =  \sqrt{( {x}^{2}  +  {5}^{2} )}  \\ 9= \sqrt{( {x}^{2}  +  {5}^{2} )}


** FYI- if you wanted to SOLVE FOR THE MISSING SIDE X, then just switch around the original equation solving in terms of x:
{9}^{2}  =  {x}^{2}  +  {5}^{2}  \\  {x}^{2}  =  {9}^{2}  -  {5}^{2}  \\ x= \sqrt{( {9}^{2} -  {5}^{2})}  =  \sqrt{(81 - 25)}  \\
x =  \sqrt{56}  =  \sqrt{(8 \times 7)}   \\ x=  \sqrt{(4 \times 14)}  =  \sqrt{4}\times  \sqrt{14}  \\ x = 2 \sqrt{14}

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