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

30 points! solve for the unknown length of each right triangle-example-1
User Dorrie
by
2.5k points

2 Answers

23 votes
23 votes

Answer:

a=5

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

User Irenes
by
3.0k points
20 votes
20 votes

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

User Patryk Godowski
by
2.5k points