Use the distance formula
d = sqrt ((y2-y1)^2 + (x2-x1)^2))
= sqrt ( (5 sqrt2 - sqrt2)^2 + ( -3sqrt5 - sqrt5)^2)
= sqrt [( 4sqrt2)^2 + (4sqrt5)^2]
= sqrt (32 + 16*5) = sqrt 112 = sqrt16 * sqrt7 = 4 sqrt7
The answer is 4 sqrt7
Multiply 45 by 2/3 2/3 = 0.66666 so 45*0.6666 = 30
Answer:
= 
Step-by-step explanation:
since the triangles are similar then the ratios of corresponding sides are in proportion , that is
= 
Work in reverse.
45 + 15= 60. 60/2= 30. 30 + x = 47.
So, x= 47-30.
x= 17.