Question

solve these four questions​

Answer 1

Answer

1. AOC = 158 COB= 22

2. X= 216

3. X= 20

4. X = 50

Answer 2

Answer:

1 . x=31 , angle aoc = 170 degree

2. x = 216

3. x = 20 angleqor = 80 degree

4. x=50, angle ebd=53 degree, angle bdc = 70 degree , angle ebc = 57 degree

Step-by-step explanation:

1 . 5x+3+x-9= 180 degree

     6x+3-9=180 degree

    6x-6=180+6

   6x=186

    x = 186/6

    x= 31 degree

angle aoc = 5x+3 = 5*31+3 =5*34 = 170 degree

2. x/2 + x/3 = 180 degree

x/2*3+x/3*2 = 180 degree (multiply both in numerator and denominator)

3x/6+2x/6=180 degree

5x/6 = 180 degree

5x     = 180 * 6

5x=1080

x =1080/5

x = 216

3. 60+4x+40 = 180 degree

    100+4x = 180 degree

    4x= 180 -100

4x = 80 degree

x = 80/4

x= 20 degree

4x = 4 * 20 = 80 degree

4. x+3+x+20+x+7 = 180 degree

   3x+30 = 180 degree

3x= 180-30

3x=150 degree

x = 150/3

x = 50 degree

angle ebd=53 degree, angle bdc = 70 degree , angle ebc = 57 degree