Answer:
Mantle
Step-by-step explanation:
I think its mantle
Answer:
24.98 units
Step-by-step explanation:
The picture of the question in the attached figure
we have the coordinates
P(1,-6),D(4,3),O(7,-6)
The perimeter of triangle OPD is equal to

the formula to calculate the distance between two points is equal to

step 1
Find the distance OP
we have
O(7,-6),P(1,-6)
substitute in the formula



step 2
Find the distance PD
we have
P(1,-6),D(4,3)
substitute in the formula



step 3
Find the distance OD
we have
O(7,-6),D(4,3)
substitute in the formula



step 4
Find the perimeter


5/x^2-1^2 + 3/x+1
5/(x+1)(x-1) + 3/x+1
5+3(x-1)/(x+1)(x-1)
5+3x-3/(x+1)(x-1)
Final answer : 3x+2/(x+1)(x-1)
Can you post a picture please!