Question

find the perimeter of the triangle? what does 2 represent in the triangle?​

Answer 1

Answer:

i  got  11.8 and what do  u mean by the 2, do u mean the 2 strokes, that means that  they  are equal

Step-by-step explanation:

Answer 2

Answer:

6 + 5$\sqrt{5}$

Step-by-step explanation:

Since the triangle is isosceles then the 2 marked sides are congruent.

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Thus perimeter (P) is the sum of the 3 sides

P = $\sqrt{20}$ + 3 + $\sqrt{20}$ + 3 + $\sqrt{5}$

  = 2$\sqrt{20}$ + 6 + $\sqrt{5}$

  = 2($\sqrt{4(5)}$ ) + 6 + $\sqrt{5}$

  = 2 ( $\sqrt{4}$ ×  $\sqrt{5}$ ) + 6 + $\sqrt{5}$

  = 2(2$\sqrt{5}$ ) + 6 + $\sqrt{5}$

  = 4$\sqrt{5}$ + 6 + $\sqrt{5}$

  = 6 + 5$\sqrt{5}$