Question 9 of 10 What is the length of CD ? In this diagram, AABC~ AEDC.
20 - X
с x
21
O A. 3
B. 4
O 0
C. 6
a
D. 5
SUBMIT

the 3rd on is correct

step-by-step explanation:

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.