6 / (x+1) = 1/2
x +1 = 12
x = 11
Answer is d ....(11)
The missing angle is 49 :)
Given:
The area model.
To find:
The area as a sum and area as a product.
Solution:
The four terms of the area model are
.
The area as a sum is the sum of all the terms of given area model.
Area as a sum = 
= 
The area as a product is the factor form of sum of all the terms of given area model.
Area as a product = 
= 
= 
Therefore, the area as a sum is
and the area as a product is
.
The answer is cA cus Ca is the answer