mathematic
posted by patience daniel
q1 a cone has a base radius of 5cm and height of 12cm(a)calculate it slant height (b)calculate it total surface area,leave answer in terms of it

MathMate
base radius = r = 5 cm
cone height = h = 12 cm
Use Pythagoras theorem to find slant height
slant height, L = sqrt(5²+12²)
=sqrt(169)=13 cm
Total surface area
= π r²+πrL
Substitute numerical values to get numerical answer. 
patience daniel
pls help me out,dis is my first time

pratik
13cm

Isaac
Pleasea help me out am stock

EMEKA
YES

Anonymous
Using pythagoras rule
L^2/l square. 5^2 + 12^2.
25+144=169.
L=square of 169=13
Slant 13cm
Respond to this Question
Similar Questions

math
how do you calculate the surface area of a cone with a slant height of 13cm and a height of 12cm.? 
Math
1)Forty solid hemisphere each of diameter 2cm , are melted to form a solid cone with a base diameter 6cm .Find the height of the cone? 
mathssurface area
A solid is in the form of cone mounted on a hemisphere in such a way that the centre of the base of the cone just coincide with the centre of the base of the hemisphere. Slant height of the cone is L and radius of the base of the cone … 
geometry
A cone has a circular base, a perpendicular height equal to 21cm, and a semivertical angle of 30degrees. Calculate the slant height of the cone. Find the area of its base.(take pie to be 22/7) 
geometry
Find the surface area of a cone with diameter 27 m and slant height 19 m. Leave your answer in terms of pie 
maths
calculate the total surface area of a solid cone of slant height 10cm. use the value 3.14 for radius 
Maths
(1) A cone has height of 8cm and circular radius 6cm calculate (a) It's Volume (b) It's Slant Height (c) The Curved Surface Area (d) The Total Surface Area 
Math
Surface area of a square pyramid 11in 13in and 9in 11 height 13 slant height 9 base edge I keep getting the wrong answer its not 328.62 or 294.93 Square area of a cone 15 slant height 12 height 6 base 
Maths
If a cone of radius r and slant height 2r is surmounted on a cone having radius 2r and slant height 4r then find total surface area of solid 
Math
The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm the diameter is 2 cm while that of neck is 2 cm. The vertical height of the flask is 12 cm. (a) the slant height of the frustum part; …