Answer:
Step-by-step explanation:
The total surface area of a cone is given by :
Put r = 2r and l = 2l in the above formula
Hence, the total surface area of the cone is .
I need help on this math its timed
2 answers:
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Answer:
The second option (see attached image)
Step-by-step explanation:
You are looking for a box diagram that represents 9 units, and from those, clearly marked sections that contain 3/2 = 1.5 units.The idea is to count how many 1.5 units you have in 9 units.
The in the second diagram you see 9 boxes subdivided in half. Then outlined in red other smaller boxes of length 1.5 units. We can clearly see from the diagram that there are exactly 6 of these smaller 1.5 units red boxes to produce the total 9 unit object.
