geometry lesson 30
TRANSCRIPT
ABC = ACB, ABC is an isosceles triangle. CAB = 180 - 80 - 80 = 20 , DAB is an isosceles triangle. BEC = 180 - 80 - 50 = 50 , BEC is an isosceles triangle. BFE = 180 - 20 - 50 = 110 , (angle property of a triangle).
DFC = 110 , (vertically opposite angles).
FDC = 180 - 110 - 30 = 40 , (angle property of a triangle).
EFD = 180 - 110 = 70 , (angle at a straight line).
ABC = ACB, ABC is an isosceles triangle. CAB = 180 - 80 - 80 = 20 .
BEC = 180 - 80 - 60 = 40 .
BFE = 180 - 10 - 40 = 130 , (angle property of a triangle).
DFC = 130 , (vertically opposite angles).
FDC = 180 - 130 - 20 = 30 , (angle property of a triangle).
EFD = 180 - 130 = 50 , (angle at a straight line).
ABC = ACB, ABC is an isosceles triangle. CAB = 180 - 80 - 80 = 20 .
BEC = 180 - 80 - 40 = 60 .
BFE = 180 - 40 - 60 = 80 , (angle property of a triangle).
DFC = 80 , (vertically opposite angles).
FDC = 180 - 80 - 40 = 60 , (angle property of a triangle).
EFD = 180 - 60 = 100 , (angle at a straight line).
The value of x could not be obtained in all the questions due to insufficient information.
Find the value of x in each figure
Find the value of x in each figure
Find the value of x in each figure
Find the value of x in each figure.
Find the value of x in each of the figure.
Find the value of x for the below figure
