Answer:

Step-by-step explanation:
The perimeter of a polygon is equal to the sum of its sides.
The sides in the triangle shown have lengths
,
, and
in no specific order.
Since its perimeter is given by the sum of its sides, the perimeter is equal to:

Combine like terms:

Answer: I think number three is 60 I think it is
Step-by-step explanation:
The answer that you are looking for is d
Answer: I need help too to that
Step-by-step explanation: