brendanhill45p3j7qr brendanhill45p3j7qr
  • 02-02-2018
  • Mathematics
contestada

what is the value of x in trapezoid abcd

what is the value of x in trapezoid abcd class=

Respuesta :

18047
18047 18047
  • 02-02-2018
9x + 3x = 180.
12x = 180
x = 15.
Answer Link
jessicapieterse jessicapieterse
  • 14-08-2019

Answer:

x=15

Step-by-step explanation:

Because CD║BA and BC≡AD,

Then: ∠B=∠A  and ∠C=∠D.

All for corners must add up to 360°:

∠A + ∠B + ∠C + ∠D = 360

2∠B + 2∠D = 360

2(3x) + 2(9x) = 360

6x + 18x = 360

24x = 360

x = 15

Answer Link

Otras preguntas

simplify this provlem
If A is a 3×2 matrix, then the transformation x→Ax cannot map R^2 onto R^3 .A) TrueB) False
Una partícula se mueve con una velocidad constante de 679km/hr. Calcular en metros el espacio recorrido en 1/6 hora
Please help. I need this done badly.
Interior and exterior angles
Interior and exterior angles
Mary bought a bag of rice for 9,000.00 and sold it for 6,300.00. What was her percentage loss?​
(2+5)-4 to the power of 2
A barometric loop is ____ above the highest piping A. 33.9 degrees B. 39.3 degrees C. 11.5 degrees D. 43.3 degrees
In the context of Hofstede's four dimensions, the _____ Index measures the tolerance of social inequality within a social system? 1) Individualism/Collectivism