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labwork [276]
3 years ago
7

the leg of a right triangle is 3 units and the hypotenuse is 11 units. What is the length, in units, of the other leg of the tri

angle? (4 points)
Mathematics
1 answer:
Levart [38]3 years ago
7 0

<u>ANSWER:</u>

Length of the third side of right triangle is 4 \sqrt[2]{7} \text { units }

<u>SOLUTION:</u>

Given, two sides of a right triangle is 3 units and 11 units.

We need to find the length of third side.

Let, length of first side be “a”  i.e. a = 3

Length of hypotenuse be “h” i.e. h = 11

Length of second side be “b” and b =?

We know that, for a right angle triangle,  

(\text { Hypotenuse })^{2}=(\text { side } 1)^{2}+(\text { side } 2)^{2}

\mathrm{H}^{2}=\mathrm{a}^{2}+\mathrm{b}^{2}

11^{2}=3^{2}+b^{2}      

121=9+b^{2}  

b^{2}=121-9    

\mathrm{b}^{2}=112

\mathrm{b}=\sqrt[2]{112}  

\mathrm{b}=\sqrt[2]{16 \times 7}

\mathrm{b}=\sqrt[2]{16} \times \sqrt[2]{7}

b=4 \sqrt[2]{7}    

hence, length of the third side of right triangle is 4 \sqrt[2]{7} \text { units }

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