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Delvig [45]
3 years ago
10

Ariel completed the work below to show that a triangle with side lengths of 9, 15, and 12 does not form a right triangle.

History
2 answers:
SOVA2 [1]3 years ago
6 0

Answer:

C

if you didn't understand what he said above

lisov135 [29]3 years ago
4 0

Answer: No, Ariel should have added 9^2 and 12^2 and compared that to 15^2.

Explanation:

Ariel completed a work to show that a triangle whether a triangle with side lengths of 9, 15, and 12 form a right triangle.

Ariel added 9 squared + 15 squared = 12 squared. 81 + 225 = 144 and concluded that 306 is not-equal to 144 and hence, it is not a right angle triangle.

To know whether it's a right angle triangle, we had the square of the two lowest figures together if it will be equal to the square of the largest figure which is called the hypotenuse.

9 squared + 12 squared =

81 + 144 = 225

15 squared= 15 × 15 = 225

So it's a right angle triangle since

9^2 + 12^2 = 15^2

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