Answer:
The wide of river is 
Step-by-step explanation:
In this problem we know that
Triangles DEG and DEF are congruent by ASA (Angle-Side-Angle) Congruence
therefore
EG=EF

step by step you can ask about anything you dont understand
Answer:
5
Step-by-step explanation:
(3,8) (0,4)
X1 = 3 X2 = 0
Y1 = 8 Y2 = 4


Do what's in the parentheses so...
- 3-0= 3
- 8-4= 4
Now plug it in!

Now you are going to finish the parentheses so...
- (3)^2= 9
- (4)^2= 16
Plug that in so that you have this...

Add 9+16 to get...

Then you are going to find the number or numbers that make this a perfect square...

So 5 is your answer
3.75 as a decimal, 3 &3/4 as a fraction