Question

Plz answer, will give brainliest

Answer 1

Answer:

12

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2  where a and b are the legs and c is the hypotenuse

a^2 + 9^2 = 15^2

a^2 +81 =225

Subtract 81 from each side

a^2 = 225-81

a^2 = 144

Take the square root of each side

sqrt(a^2) = sqrt(144)

a=12

Answer 2

Answer:

a = 12 meters

Step-by-step explanation:

Use pythagorean theorem to identify the missing leg

pythagorean theorem = $a^2+b^2=c^2$

In this case, we are looking for a so...

$a^2+b^2=c^2$

$a^2+9^2=15^2$

$a^2+81=225$

$a^2=225-81$

$a^2=144$

It doesn't make sense for a to be equal to 144 so we must square root 144

144 = $12^{2}$ meters

Final Answer: 12 meters