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3 years ago

I am very confused (I didn’t mean to press B)

Mathematics

1 answer:

Marta_Voda [28]3 years ago

5 0

Answer:

The anwer is A

Step-by-step explanation:

If it is a right angle triangle we use paythagoras theorem

a ×a + b× b= c × c

so we use the side which is straight to the 90° angle for the variable C. For variable A and B it doesn't matter we can use what we want.
so the side which is straight to the 90° angle is 17.
now let's substitute

1. 15× 15( square of 15) + b× b(square of b) = 17 ×17 (square of 17)

;2. 225 + b×b(square of b ) = 289

3. b×b(square of b) = 289-225

4. b × b( square of b )= 64

$\sqrt{b \times b} = \sqrt{64}$

b = 8

I hope it is helpful

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