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svp [43]
3 years ago
8

Which equation can be used to find the unknown length, a, in this triangle?

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0

Answer:

Here is the complete question.(attachment)

The correct choice is a^2+15^2=17^2

Step-by-step explanation:

We will apply the Pythagoras formula to calculate the perpendicular length (a).

Pythagoras formula =(base)^2+(perpendicular)^2=(Hypotenuse)^2

The right angle is formed between a and 15\ m length.

So 17\ m is the hypotenuse opposite to right angle is the longest side and called the hypotenuse.

So

(a)^2+(15)^2=17^2

a=\sqrt{17^2-15^2}= 8\ m

So the measure of side length a is 8\ m.

That can be calculated from the option A that is (a)^2+(15)^2=17^2.

Note:Please don't look to the marked answers that was wrong in the attachment.

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