Find the external surface area, Mathematics

A shuttlecock used for playing badminton has the shape of a frustum of a Cone mounted on a hemisphere.  The external diameters of the frustum are 5 cm and 2 cm, and the height of the entire shuttlecock is 7cm.   Find the external surface area.(Ans: 74.26cm2)

Ans: r1 = radius of lower end of frustum = 1 cm

r2   = radius of upper end = 2.5 cm

l = 2181_equ..png= 6.18 cm

External surface area of shuttlecock = π (r1 + r2) l + 2π r2 1

On substituting we get,   = 74.26 cm2

 

 

Posted Date: 4/10/2013 6:51:18 AM | Location : United States







Related Discussions:- Find the external surface area, Assignment Help, Ask Question on Find the external surface area, Get Answer, Expert's Help, Find the external surface area Discussions

Write discussion on Find the external surface area
Your posts are moderated
Related Questions
i need help for DIFFERENTIAL EQUATION PROJECT

What is Monomials and Polynomials in maths? An expression like 7x is called a monomial. A monomial is an integer, a variable, or a product of integers and variables. Other e

Necessity of holistic marketing or importance of holistic marketing

An $80.00 coat is marked down 20%. It does not sell, so the shop owner marks it down an additional 15%. What is the new price of the coat? Find out 20 percent of the original p

#questionQn 1- An analysis of monthly wages of workers of two organizations Alia LLC and Asila LLC yielded the following results. Alia LLC Asila LLC Average monthly wages 60

What are the ingredients of a Mathematical Model? What is a model?

if HCFof 657 and 963 is expressable in the form of 657x+963x-15findx

Explain with the help of number line (-6)+(+5)

Find x and y in each paarallelogram.

Jackie invested money in two different accounts, one of that earned 12% interest per year and another that earned 15% interest per year. The amount invested at 15% was 100 more tha