BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
Live EA class + 6 months of EA OnDemand
  • Expert-led weekly online sessions
  • EA Masterclass access between classes
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

130-point score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

A cone is cut off the up part

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 53
Joined: Wed Dec 10, 2008 5:47 am
Location: Rorkee
by CrackGMAC » Thu Aug 27, 2009 8:09 am
121. A cone is cut off the up part (The new plane should be parallel to the bottom). The diameter of two circles is given, what is the surface area of the geometric form (not including two bottom?)?
1). Height of the form is ...
2). The circle in the middle plane has a diameter... IMO [spoiler]A[/spoiler]
Beat The GMAT
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Junior | Next Rank: 30 Posts
Posts: 23
Joined: Mon Apr 27, 2009 7:59 am
Location: London
GMAT Score:640

by BrianSmith » Sun Aug 30, 2009 4:00 am
I don't understand: is the diameter of top circle given in the question or in the second statement? Or are there three circles (and hence a middle one)?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 53
Joined: Wed Dec 10, 2008 5:47 am
Location: Rorkee

by CrackGMAC » Fri Sep 04, 2009 6:22 am
I believe there are three circles
Beat The GMAT
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 1578
Joined: Sun Dec 28, 2008 1:49 amFollowed by: 9 members
Thanked: 82 times
GMAT Score:720

Re: A cone is cut off the up part

by maihuna » Fri Sep 04, 2009 6:42 am
CrackGMAC wrote:121. A cone is cut off the up part (The new plane should be parallel to the bottom). The diameter of two circles is given, what is the surface area of the geometric form (not including two bottom?)?
1). Height of the form is ...
2). The circle in the middle plane has a diameter... IMO [spoiler]A[/spoiler]
This is about frustum of a cone. You may draw a cone and remove the top, what is being asked is the lateral surface after the removal.

The lateral surface is IIrl here r will be 1/2(r1+r2) and given r and h we may find l, so C should be answer.

what is the source of the Q
Charged up again to beat the beast :)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1