21 rounded to the nearest 10 is 20 :)
Answer:
Its a right triangle
Step-by-step explanation:
Answer: -51 my friend
Step-by-step explanation:
Solution
The dimension of the rectangular floor is 18ft long and 12 ft wide
Using the conversion table
It is given that 1yd =3 ft
This shows that
12 feet will be equivalent to

Also 18ft will be equialent to

Therefore the new dimension is 6 yard by 4 yard
The area will be

Therefore the required area is