Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
In parallelogram ABCD m<A is 30 more than m<B. Find the measure of m<D....
ALL WORK MUST BE SHOWN AND DIAGRAM NEEDED IF NECESSARY.
 one year ago
 one year ago
In parallelogram ABCD m<A is 30 more than m<B. Find the measure of m<D.... ALL WORK MUST BE SHOWN AND DIAGRAM NEEDED IF NECESSARY.
 one year ago
 one year ago

This Question is Closed

LogicalAppleBest ResponseYou've already chosen the best response.1
What do we know about the angles in a parallelogram ? How are they related?
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
Well, each angle has a corresponding angle on the opposite side, which is equal. dw:1357250638700:dw So if the lower right angle is A = 30 + B then it would look like..
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
dw:1357250721161:dw
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
The angle measurements
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
dw:1357250780328:dw
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
I think that is what you indicated in the question.
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
That angle A is 30 more than Angle B
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
What I labeled in the diagram as "B" and "30 + B" are the angle measurements for each angle. Last question is, what do the angle measurements add up to in a parallelogram ?
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
Yes, exactly. We can solve for B by adding up all the angles: 30 + B + B + 30 + B + B = 360
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
Solve for B and what do we get for the measure of angle B ?
 one year ago

beautiful_gurlBest ResponseYou've already chosen the best response.0
how do I do that?
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
30 + 30 is 60, and B + B + B + B = 4B so we have 60 + 4B = 360
 one year ago

beautiful_gurlBest ResponseYou've already chosen the best response.0
now do you subtract 60 from 360?
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
Yes, that leaves 4B = 300
 one year ago

beautiful_gurlBest ResponseYou've already chosen the best response.0
and then you divide by 4?
 one year ago

beautiful_gurlBest ResponseYou've already chosen the best response.0
and you get what?
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
B = 75 degrees So we know that B = 75 degrees, and based on the parallelogram, would you agree that B = D ?
 one year ago

LogicalAppleBest ResponseYou've already chosen the best response.1
Then our conclusion is that the measure of angle D is 75 degrees :)
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.