austinrman
New member
- Joined
- Jul 30, 2013
- Messages
- 2
I am taking a free pre-algebra online course at Udacity. I, however, am stuck on a question. If you can not enter the correct answer on a practice quiz you can not move forward in the course, so I really need help with this one! Thanks for any help.
Here is the question:
You have a table in your living room with a round top that has a diameter of 2 and ½ feet. You would like to put a piece of glass over the top of the table to protect the surface. What is the Area of the tabletop? (Use 3.14 for the value of pi). Write your answer as a mixed number.
Here is my work and answer:
Area of tabletop = 3.14*radius squared
diameter= 2_1/2
radius = 1.25
so area= 3.14*1.25^2
this =4.91 rounded to nearest hudred
and 4.91 as a mixed number = 4_91/100.
Where did I go wrong?
Here is the question:
You have a table in your living room with a round top that has a diameter of 2 and ½ feet. You would like to put a piece of glass over the top of the table to protect the surface. What is the Area of the tabletop? (Use 3.14 for the value of pi). Write your answer as a mixed number.
Here is my work and answer:
Area of tabletop = 3.14*radius squared
diameter= 2_1/2
radius = 1.25
so area= 3.14*1.25^2
this =4.91 rounded to nearest hudred
and 4.91 as a mixed number = 4_91/100.
Where did I go wrong?