Answer:
a) As sides of squares are always equal.
So,
BC=CD
2b+CF=a+b
CF= a+b-2b
CF= a-b
b) Area of rectangle CDEF= CDxCF
=(a+b)(a-b)
=(a²-b²)
Hope it helps :-)
Answer:
C.
Step-by-step explanation:
Not A. Not B. Not D. C.
Answer:
Its D
Step-by-step explanation:
The word association is related to independence test