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choli [55]
3 years ago
10

HELP PLEASE 

Mathematics
2 answers:
romanna [79]3 years ago
7 0
The answer is D because to use Pythagorean Theorem it has to be a right triangle.
Irina18 [472]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Hello

Pythagoras' theorem states that <u>in every right triangle</u>, the square of the length of the hypotenuse is equal to the sum of the squares of the respective lengths of the sides

if c is the hypotenuse

c^{2} =a^{2} +b^{2}

isolating a side (a)

c^{2} =a^{2} +b^{2}\\c^{2}-b^{2} =a^{2} \\a=\sqrt{c^{2}-b^{2}}

if sandra knew  the length of the hypotenuse and the length of a side could use this equation to find the other side.

the only right triangle ( an angle is 90°) in the options is the D.

Have a great day.

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