Question

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

Answer 1

6 + 5
`√(5)`

Explanation:

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

Using the rule of radicals

`√(a)` ×
`√(b)` ⇔
`√(ab)`

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

P =
`√(20)` + 3 +
`√(20)` + 3 +
`√(5)`

= 2
`√(20)` + 6 +
`√(5)`

= 2(
`√(4(5))` ) + 6 +
`√(5)`

= 2 (
`√(4)` ×
`√(5)` ) + 6 +
`√(5)`

= 2(2
`√(5)` ) + 6 +
`√(5)`

= 4
`√(5)` + 6 +
`√(5)`

= 6 + 5
`√(5)`

Answer 2

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

Explanation: