if one angle of a parallelogram is 105°, find the other three angles and the ratio between the four angles
Answers
Answer:
some examples and answer you may get your ans
Step-by-step explanation:
How many diagonals does each of the following have?
(a) A convex quadrilateral
Ans. Two
(b) A regular hexagon
Ans. 9
(c) A triangle
Ans. 0 (zero)
Q3. What is the sum of the measures of the angles of a convex quadrilateral? Why this property hold if the quadrilateral is not convex? (Make a non-convex quadrilateral and try!)
Ans. Angle sum of a convex quadrilateral = (4 – 2) × 180° = 2 × 180° = 360°
Since, quadrilateral, which is not convex, i.e. concave has same number of sides i.e. 4 as a convex quadrilateral have, thus, a quadrilateral which is not convex also hold this property. i.e. angle sum of a concave quadrilateral is also equal to 360