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son4ous [18]
3 years ago
7

Which is the length of the hypotenuse for a right triangle with leg a = 8 and leg b = 15 cm?

Mathematics
1 answer:
Len [333]3 years ago
5 0

Answer:

\huge{ \boxed{ \tt{17 \: cm}}}

Option D is the correct choice.

☪ First , Let's know about right triangle , legs and hypotenuse :

  • A right triangle is a triangle with an angle of 90°.
  • The two sides that form the right angle are called legs.
  • The opposite side of right angle is the hypotenuse.

☥ Let's explore about The Pythagorean Theorem :

  • Pythagoras was one of the first mathematician to recognize the relationship between the sides of a right triangle. This special relationship forms ' The Pythagorean Theorem '.
  • The Pythagorean theorem states that the sum of the squares of the legs of a right triangle equals the square of the length of a hypotenuse.
  • In algebraic terms , The Pythagorean Theorem is stated as : \boxed{ \sf{ {a}^{2}  +  {b}^{2} =  {c}^{2} }}

------------------------------------------------------------

☯ Now , let's start to solve :

✑ \underline{ \underline{ \text{Given}}} :

  • a = 8 cm , b = 15 cm

✑ \underline{ \underline{ \text{To\: Find}}} :

  • Length of a hypotenuse ( c )

✐ \underline{ \bold{ \underline{Using \: Pythagorean \: Theorem}}} \: :

☞ \boxed{ \bold{ \sf{ {a}^{2}  +  {b}^{2} =  {c}^{2}  }}}

Substitute the known values :

↦ \sf{ {8}^{2}  +  {15}^{2}  =  {c}^{2}}

↦ \sf{64 + 225 =  {c}^{2} }

↦ \sf{289 =  {c}^{2} }

↦ \sf{ {c}^{2}  = 289 }

Take the square roots of both sides :

↦ \sf{ \sqrt{ {c}^{2} }  =  \sqrt{289}}

↦ \boxed{ \sf{c = 17 \: cm}}

The length of the hypotenuse is \boxed{ \bold{ \text{17 \: cm}}}.

And we're done!!

Hope I helped!

Have a wonderful day ! ツ

~TheAnimeGirl ♡

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