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TOPIC: PS Geometry
#2251
Vijay (User)
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PS Geometry 8 Months, 1 Week ago Karma: 3  




AB and DE are parallel. Angle BAC = 30 , angle CDE = 50. What is the measure of angle ACD ?


A. 100
B. 90
C. 80
D. 70
E. cannot be determined from the information





The solid brick shown is made of small bricks of side 1. When the large brick is disassembled into its component small bricks, the total surface area of all the small bricks is how much greater than the surface area of the large brick?

A. 32
B. 40
C. 60
D. 72
E. 80
 
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Last Edit: 2009/07/04 01:00 By Vijay. Reason: want to upload file for question 2
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#2283
candidanubhav@yahoo.co.in (User)
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Re:PS Geometry 8 Months, 1 Week ago Karma: 0  
C) for the first question _base_d on supplementary angles sume=180.

Isn't there any measurement to the component small bricks ?
 
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#2284
Vijay (User)
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Re:PS Geometry 8 Months, 1 Week ago Karma: 3  
Doc. Attached for problem no.2
File Attachment:
File Name: brick.zip
File Size: 1240
 
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Last Edit: 2009/07/04 19:52 By Vijay.
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#2293
anirban (User)
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Re:PS Geometry 8 Months, 1 Week ago Karma: 0  
ma ans is C
 
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#2294
anirban (User)
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Re:PS Geometry 8 Months, 1 Week ago Karma: 0  
ma ans is C
 
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#2306
Huzefa (Moderator)
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Re:PS Geometry 8 Months, 1 Week ago Karma: 11  
Vijay wrote:




AB and DE are parallel. Angle BAC = 30 , angle CDE = 50. What is the measure of angle ACD ?


A. 100
B. 90
C. 80
D. 70
E. cannot be determined from the information




Hi Vijay.

For this one, drop a perpendicular CM to AB and from CN to DE...Then, angle ACM is 60 and DCN is 40. that leaves 80 on the straight line MN...Hence, the answer is C.
 
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