Question

find the value of x in each case​

Answer 1

Answer:

Step-by-step explanation:

a) the triangle has equal sides

   40+40+x+x=180(a triangle add upto 180)

    80+2x=180

    2x=180-80

   2x=100

    2     2

     x=50

b) using angels at the point

  x+65+80+65=360(angles at the point add upto 360)

  x+210=360

  x=360-210

  x= 150

c) a right angel=90

 x+90+x=180

2x=180-90

2x=90

2      2

x=45

d)50+50+y=180

100+y=180

y=180-100

y=80

D=80(corresponing angles)

x+80+80+80=360

x+240=360

x=360-240

x=120

f) 150÷2=75

60+75+y=180

135+y=180

y=45

45+45=90

90+150+60+x=360

300+x=360

x=360-300

x=60

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