Question

Find The Unknown angles in the following angles

Answer 1

Answer:

a) c=3x ( alternate interior angles)

d+3x = 180 degree ( linear pair angles)

f+3x = 180 degree ( L.P.A)

e= 3x ( vertically opposite angles)

c=a ( V.O.A)

a= 3x

a+x = 180 degree ( L.P.A)

c+b = 180 degree (L.P.A)

b) z=40 degree (V.O.A)

z+x+35 degree= 180 degree ( L.P.A)

40+35+x = 180 degree

x= 105 degree

x= y ( V.O.A)

y=105 degree

c) 85 + 43+ c = 180 degree ( L.P.A)

c= 57 degree

c= a ( V.O.A)

a= 57 degree

a+b = 180 degree (L.P.A)

b= 123 degree

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only 5 points for this question....it consists 4 parts .

Answer 2

✤ Refer to the attachment :

☯ Alt Int Ang. - Alternate Interior Angles

☯ Alt Ext Ang. - Alternate Exterior Angles

☯ VOA - Vertically Opposite Angles

☯ Co-Int Ang. - Co-Interior Angles

KNOW THIS :

• Linear Pair is always of 180 ° .

• Straight Angles are of 180° .

• VOA are always equal .

• Co-Int Angles are of 180° .

• Alt Int Ang. are equal .

• Alt Ext Ang. are equal .