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

15 m
17 m
3+15² = 172
152 +172 - a
2² +15= 172
at 15² = 17²

User JayKrish
by
5.0k points

2 Answers

4 votes

Answer:

Yes it is A

Explanation:

User Surendrapanday
by
5.3k points
0 votes

Answer:

Here is the complete question.(attachment)

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

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=√(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.

Which equation can be used to find the unknown length, a, in this triangle? 15 m 17 m-example-1
User Rsc
by
6.1k points