Post a New Question

GEOMETRY

posted by on .

ABCD is an inscribed quadrilateral. AD, BC are produced to meet at X. If angle B= 80 degrees and angle X= 30 degrees, find angle XCD.

  • GEOMETRY - ,

    I will assume you mean "inscribed in a circle"
    In a cyclic quadrilateral, the opposite angles are supplementary, so angle D = 100°
    Also angle ADC is an exterior angle in triangle DCX, so
    angle DCX + angle CXD = angle ADC
    angle DCX + 30 = 100
    angle DCX = 70°

  • GEOMETRY - ,

    30

  • GEOMETRY - ,

    50 degrees

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question