Please help me work this out.

See what 2 numbers equal 49, Which would be 7 and 7.

The answer is 7.

Hope this helps. :) Good Luck!

Step-by-step explanation:

Step 1. Multiply 7 times 7

Step 2. Once you multiply 7 times 7, you get 49. :)

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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