Question

30 points! solve for the unknown length of each right triangle

Answer 1

Answer: a=5

Step-by-step explanation: Use the pythagorean theorem and get

(a)^2+(12)^2=(13)^2

This would then be (a)^2+144=169

subtract 144 from both sides and get

(a)^2=25

Take the square root of both sides and you get a=5

Answer 2

Answer:

a=5

Step-by-step explanation:

Pythagorean theorem

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

substitute your values

$a^{2}$ + $12^{2}$ = $13^{2}$

    - 12    - 12

$a^{2}$ = $13^{2}$ - $12^{2}$

a = 169-144

a= 25

now find the square root of 25, which is 5