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

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

In the diagram above, angle measures in degrees are marked as shown, and segment BC is parallel to line AD.

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Moderator
Posts: 7187
Joined: Thu Sep 07, 2017 4:43 pmFollowed by: 23 members
by BTGmoderatorDC » Mon Aug 30, 2021 10:59 pm

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty—

two triangles on a line.JPG
In the diagram above, angle measures in degrees are marked as shown, and segment BC is parallel to line AD. What is the measure of angle E?
(A) 30°
(B) 35°
(C) 40°
(D) 45°
(E) 50°

OA D

Source: Magoosh
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Legendary Member
Posts: 2545
Joined: Sun Oct 29, 2017 2:04 pmFollowed by: 6 members

Re: In the diagram above, angle measures in degrees are marked as shown, and segment BC is parallel to line AD.

by swerve » Tue Aug 31, 2021 2:49 am
BTGmoderatorDC wrote: ↑
Mon Aug 30, 2021 10:59 pm
 two triangles on a line.JPG

In the diagram above, angle measures in degrees are marked as shown, and segment BC is parallel to line AD. What is the measure of angle E?
(A) 30°
(B) 35°
(C) 40°
(D) 45°
(E) 50°

OA D

Source: Magoosh
Try as follows:

Step 1: Since angles \(A\) and \(B\) are given, we can find the value of angle \(C,\) it has to be \(40^{\circ},\) because the sum of all interior angles in a triangle (\(ABC\) in this case) must be \(180^{\circ}.\)

Step 2: Therefore, angle \(EAD\) has to be also \(40^{\circ}\) (i.e. equal to \(ACB\)), since we are given that \(AD \parallel BC.\)

Step 3: Finally, angle \(DEA\) must be \(45^{\circ},\) because (again) the sum of all interior angles in a triangle must be \(180^{\circ}.\)

Therefore, D
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1