Answer Posted / mannan
We know that another name for a dome is half of a sphere,
lets check, if the diameter was 96" accross then the radius
has to be half that. Is it?
Let's try a similar dome,
38" accross, 19" high, taking the formula for surface area,
surface area = 4 π r2
we need to modify it because the dome will only be half of
the sphere.
So,
Surface Area of a dome = (1/2) 4 π r2 = 2 π r2
We know radius (height) and pi, now we just need to sub the
numbers in;
Surface Area of a dome = 2 π r2 = 2(3.1415...)(19)2
Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
i am completed my b.tech EEE in 2009,,,iam trying the job 3+ for AUTO CAD (ELECTRICAL),, what is the market for autocad electrical in hyderabad... how to handle the intervws give some suggestions ?
i) Distinguish between Theodolite and dumpy Level? (Marks-8) ii)Distinguish between Viscous and Turbulent flow? (Marks-8) iii) Distinguish between nominal and design mix? iv) What is standard sand? v) Explain the term plane stress? Vi) Differentiate between principal plane and principal axis? Vii) write short notes on Elastic limit of structural steel? viii) Write short notes on stress concentration? ix) write short notes on "Grading of Sand" ? x) How many grades of concrete are there under standard concrete?
why is M25 and Fe 500 assumed to be most economical? i feel it is not.This is because higher grade of concrete and steel has higher lapping length and anchorage length compared to lower grades..
how can can column be corrected when the design is not safe ? is the increasing the clearcover a solution?
sir when can we expect the AEE results and when will be the interviews sheduled please guide us in this regard thanking you
what is the weight of 12mm aggregates?
is concealed wiring a problem in fly ash brick wall?
Why are separation membranes used between concrete pavement slab and sub-base?
how many numbers of 4inch bricks and get consumed in 9 inch BB masonary wall in cubic feet.plz send my below e.mail adress
I want to join bhel because
Hi.. Can i get hel in finding HPCL previous year question paper? plz help me in finding thiss..
how to prepare site mix design
door and window wood work calculations and different methods
residential buildings,mixing of concrete,structural,construction material,site handling.
What is absolute coordinates?