OLA College of Education EBS 124/124J: College Geometry Assignment 5 A glass cone is cut x cm from its apex to form a lamp shade which is in a form of a frustum. The lower diameter is 20 cm, the upper diameter is 12 cm and the height is 10 cm, as shown in the figure. 12cm 10cm 20cm Find; (i) (ii) The surface area of the shade The original height of the glass cone (Take n = ) %3D

OLA College of Education EBS 124/124J: College Geometry Assignment 5 A glass cone is cut x cm from its apex to form a lamp shade which is in a form of a frustum. The lower diameter is 20 cm, the upper diameter is 12 cm and the height is 10 cm, as shown in the figure. 12cm 10cm 20cm Find; (i) (ii) The surface area of the shade The original height of the glass cone (Take n = ) %3D

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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Question

OLA College of Education
EBS 124/124J: College Geometry
Assignment 5
A glass cone is cut x cm from its apex to form a lamp shade which is in a form of a
frustum. The lower diameter is 20 cm, the upper diameter is 12 cm and the height
is 10 cm, as shown in the figure.
12cm
10cm
20сm
Find;
(i) The original height of the glass cone
(ii) The surface area of the shade
(Take n
-꼭)
22

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