Answer:
a = 4
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
Length of diagonal is a
Diagonal divides the angle in 1:2
such that
(because angle between two sides is 90)


width of rectangle is 
Length of rectangle is
Area of rectangle 


4b²+20b+25=0
Divide everything by 4
b²+5b+ 6.25=0
use the quadratic formula
x= (-b+ or - √b²-4ac) /2a
x= (-5 + or - √5²-4*1*6.25) /2(1)
x= -5/2 so
in this case, b= -5/2
Lets first take out the GCF of the numbers, we get
3 ( 4a^2 - 12ab + 9b^2)
= 3 ( 2a - 3b)(2a - 3b)
That's it