354,485 views
6 votes
6 votes
Find the missing side of each triangle GIVE STEP BY STEP PLEASE!!!

Find the missing side of each triangle GIVE STEP BY STEP PLEASE!!!-example-1
User Marcusturewicz
by
2.7k points

1 Answer

10 votes
10 votes

When you see a right triangle and need to solve for one side, use the Pythagorean Theorem. This states that the square of the hypotenuse is equal to the sum of the squares of the adjacent sides. In algebraic terms:


a^2+b^2=c^2

In triangle 1, we are given c and b, we need to find a.


a^2+8.7^2=9.4^2\\a^2+75.69=88.36\\a^2+75.69-75.69=88.36-75.69\\a^2=12.67\\√(a^2)=√(12.67)\\a=3.56

In triangle 2, we have a and c, we need to find b.


6^2+b^2=14^2\\36+b^2=196\\36-36+b^2=196-36\\b^2=160\\√(b^2) = √(160)\\b=4√(10)

User MarvelTracker
by
3.5k points