Find the perimeter of the triangle. Write the solution in simplest form.
http://curriculum.kcdistancelearning.com/courses/ALG1x-HS-A06/b/Exams/8HW7/8HW7_q9.gif
as soon as i thought i understand i get a problem like this lol please help me walk thought it again? @johnweldon1993

Question

Find the perimeter of the triangle. Write the solution in simplest form.
http://curriculum.kcdistancelearning.com/courses/ALG1x-HS-A06/b/Exams/8HW7/8HW7_q9.gif
as soon as i thought i understand i get a problem like this lol please help me walk thought it again? @johnweldon1993

johnweldon1993 · Answer

Lol well we just add them all

$$\sqrt{5} + \sqrt{50} + \sqrt{20}$$

Now √5 cannot be simplified anymore....

Lets think of perfect squares for √50

1 that we've been using lately comes to mind... :)

johnweldon1993 · Answer

hint

25 times 2 = 50 :)

anonymous · Answer

sorry and i knew that i was doing something for someone lol

johnweldon1993 · Answer

lol no problem! :)

so so far we have

$$\sqrt{5} + 5\sqrt{2}$$

now lets look at √20...perfect squares?

anonymous · Answer

4^2

johnweldon1993 · Answer

well....4 would be the perfect square (dont square the 4)

$$\sqrt{20} = \sqrt{4}\sqrt{5}$$

Right....so this becomes

$$2\sqrt{5}$$

Now we have everything we need...

$$\sqrt{5} + 5\sqrt{2} + 2\sqrt{5}$$

Now combine the 2√5 + √5 ...?

johnweldon1993 · Answer

Did you solve this yet?

anonymous · Answer

what do i do if the number inside the square thing is not the same @johnweldon1993

johnweldon1993 · Answer

You would just leave it...it cannot be combined

$$3\sqrt{5} + 5\sqrt{2}$$

would be your final answer..unless they want a decimal...

anonymous · Answer

no i think this is a choice