Answer:
The complete area of the given figure is 
Step-by-step explanation:
Total number of rows = 2
Squares in each row = b
So, the total number of squares in 2 rows = 2 x ( Squares in 1 row ) = 2 x b
Also, side length of 1 square = b cm
As we know, AREA OF SQUARE = SIDE x SIDE
So here, area of 1 square = Side x side = b cm x b cm = 
⇒ The area of total (2b) squares = 2 b x ( Area of 1 square)

Hence, the complete area of the given figure is 
Answer:
48
Step-by-step explanation:
3(22)+4(32)
=(3)(4)+4(32)
=12+4(32)
=12+(4)(9)
=12+36
=48
Answer:
c. 9/12
Step by step explanation.
Given: sin = 9/15
and,


thus, find adj. side
by using Pythagoras theorem

then,
let adj. side be a^

thus,
adj. side is 12
then,
tan of the angle = 9/12
Answer:
351
Step-by-step explanation:
27C2 = 27! / 2! × (27-2)!
= 27×26×25! / 2×1 × 25!
= 27×26 /2
= 27×13
= 351