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anonymous
 5 years ago
In a quadrilateral ABCD, the measure of angle A is 2x, the measure of angle B is 3x15(degrees), the measure of C is 4x90(degrees), and the measure of angle D is x+15(degrees). Find the value of X, Is ABCD a rectangle? What is the average of the four angles?
anonymous
 5 years ago
In a quadrilateral ABCD, the measure of angle A is 2x, the measure of angle B is 3x15(degrees), the measure of C is 4x90(degrees), and the measure of angle D is x+15(degrees). Find the value of X, Is ABCD a rectangle? What is the average of the four angles?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what do you know about the sum of internal angles of a quadrilateral?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0x=45(degrees) no abcd is not a rectangle average of angles is=90

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0not much the whole thing equals 360 degrees

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0right, so the sum equals 360. angles A,B,C,D are given. add up all the angles and equate them to 360 post your equation here.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hint: A, B, C, D being angles, A+B+C+D = 360

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(2x+3x15+4x90+x+15=360) = (10x90=360) x=45.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0right. x = 45. What is the requirement of a quadrilateral to be a rectangle?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, so I was doing something like 2x=360 and then trying to solve from there. totally wrong. all quadrilaterals can be solved like this?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0all the angle measurements have to be 90 degrees right

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes. so what is the measure of angle A, angle B , angle C and angle D?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0a= 90 b=120 c=90 d=60 average=90 =]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0why do you care about the average?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ah, okay its asked in the problem. average of the angles of a quadrilateral is always 90, no matter what the angles are.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0because a quadrilateral has 4 internal angles and they add up to 360 degrees. so you always end up with 360/4 as the average angle.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay so what is your conclusion? Is this a rectangle or not?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0WHAT IS THE DISCUSSION TOPIC?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0cool. thanks everybody!
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