Q. 184.2( 5 Votes )

<span lang="EN-US

Answer :

As cone is mounted upon hemisphere, both radius will be equal.


So, radius of cone (r) = radius of hemisphere(r) = 3.5 cm


Height of toy = height of cone + height of hemisphere


15.5 cm = h + 3.5 cm (Since height of hemisphere is its radius)


h = 12 cm


So, height of cone (h) = 12 cm


Slant height of cone




= 12.5 cm


Total surface area of toy = curved surface area of hemisphere +


curved surface area of cone


Curved surface area of hemisphere




Curved surface area of cone




Total surface area of toy = 77 + 137.5


Conclusion: Therefore, total surface area of toy is


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Glimpses of IndiaGlimpses of IndiaGlimpses of India39 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses