taeilniverse
taeilniverse taeilniverse
  • 22-09-2016
  • Mathematics
contestada

please help : ( and please explain how you got the answer

please help and please explain how you got the answer class=

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 25-09-2016
Sum of interior angles of a quadrilateral = 360 degrees.

x + 10 + x + 10 + 2x + 50 + 2x + 50 = 360
6x + 120 = 360
6x = 360 - 120 = 240
x = 240/6 = 40
x = 40

A = D = 2(40) + 50 = 80 + 50 = 130 degrees
B = C = 40 + 10 = 50 degrees
Answer Link

Otras preguntas

Is "please have a seat" a complete sentence?
What is Armistice Day?
rearrange the following equations into slope intercept form. -3y=2x-6
The perimeter of a square garden is to be at least 30 feet but not more than 64 feet. Find all possible values for the length of its sides.
Three of four numbers have a sum of 22. If the average of the four numbers is 8, what is the fourth number?
Hey, need some help "hew" means.. 1. to cut with an axe 2. to imitate 3. to express woe 4. a sudden attack
how do you convert 0.125 into a ratio
Can you tell me what is peripatetic A. a kind or type B. introductory part to a play C. walking casually from place to place D. seeming to have no ending
Is "please have a seat" a complete sentence?
Three of four numbers have a sum of 22. If the average of the four numbers is 8, what is the fourth number?