3
Three angles of a quadrilateral are equal
and its fourth angle is 120°. Find all the
angles.
Answers
Answered by
1
Step-by-step explanation:
this is answer this is write
Attachments:
Answered by
3
Answer:
Let x be one the three equal angles.
Sum of all the angles of a quadrilateral = 360°
⇒ x + x + x + 120° = 360°
⇒ 3x = 360° -120°
⇒ 3x = 240°
⇒ x = 80°
Thus, the measure of each of the equal angle is 80°·
Step-by-step explanation:
Similar questions