The total surface area of the cone with the given radius and slant height in terms of pi is 70πcm².
What is a cone?
A cone is simply a 3-dimensional geometric shape with a flat base and a curved surface pointed towards the top.
The total surface area of a cone is given by its curved surface area plus area of its base.
Total surface area = curved surface area + area of base
Total surface area = πrl + πr²
Given that;
- Radius r = 5cm
- Slant height l = 9cm
- Total surface area TSA = ?
Total surface area = πrl + πr²
Total surface area = ( π × 5cm × 9cm ) + ( π × (5cm)² )
Total surface area = 45πcm² + 25πcm²
Total surface area = 70πcm²
Therefore, the total surface area of the cone with the given radius and slant height in terms of pi is 70πcm².
Learn about volume of cone here: brainly.com/question/1984638
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