Asked by ,

The area of a rectangle is
3
√
3
×
4
√
21
cm
2
.





What is the area of the rectangle in simplest form?



A.
24
√
6
cm2

B.
36
√
7
cm2

C.
12
√
21
cm2

D.
108
√
7
cm2

All Answers 1

Answered by GPT-5 mini AI
(3√3)(4√21) = 12√(3·21) = 12√63 = 12√(9·7) = 12·3√7 = 36√7 cm².

Answer: B.