Answer:
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Step-by-step explanation:
hope it's correct or helpful in some way
Answer:
Between 6 and 7
Step-by-step explanation:
6^2 = 6 × 6 = 36
7^2 = 7 × 7 = 49
45 is between 36 and 49
1. You must subtract both sides by 1/4n to end up with 2/4n-18=-4
2.Then you add 18 to both sides to end up with 2/4n=14
3. Now you multiply both sides by 2/4 , aka 1/2 to get n by itself, and you will end up with n=7
n=7 is your answer!
The midpoint lines are half the opposite side length.
Line DE is given as 7 , So Line F = 7 x 2 = 14
Line EF is given as 12, so Line D = 12 x 2 = 24
Line DF is given as 16, so line E = 16 x 2 = 32
The perimeter is the sum of the 3 sides:
Perimeter = 14 + 24 + 32 = 70
