Answer: The correct option is third ( c) .
Height is irrational and it is multiplied by other rational dimensions .
Step-by-step explanation: -
We have given the formula to find the area of a trapezoid .
Formula of area of trapezoid is
1
A = ------ ( b₁ + b₂ ) h
2 1 37
where b₁ = 3.6 cm and b₂ = 12 -------- cm = ------------ cm
3 3
Height = √5 cm.
Plug all the values in the formula of area .
1 37
A = -------- ( 3.6 + ------ ) √ 5 sq cm
2 3
First option is not correct as the values of all the variables are not irrational numbers .
Second option is not correct as the entire answer is not being multiplied by any fraction . It is being multiplied by irrational number .
Third option is correct as height is irrational and it is multiplied by other rational dimensions .
Fourth option is not correct as sum of basis is not multiplied by a rational height . Height is irrational .
Thus the correct option is third one :- Height is irrational and it is multiplied by other rational dimensions .
