10^-3 means move decimal place 3 places to left or divide by 1000
move decimal place 3 places left
0.0030205 is normal form
Answer:
The perimeter of triangle ABC is 15.8 units
Step-by-step explanation:
we know that
The perimeter of a triangle is equal to the sum of its three length sides
the formula to calculate the distance between two points is equal to
we have the coordinates
step 1
Find the distance AB
we have
substitute in the formula
step 2
Find the distance BC
we have
substitute in the formula
step 3
Find the distance AC
we have
substitute in the formula
step 4
Find the perimeter
substitute the values
The distnace around a two dimensional shape