Question

justify your answer for the following statements. (1) three angles of a quadrilateral abcd are equal. is it a parallelogram? why or why not? (2) diagonal ac and bd of a quadrilateral abcd intsect each other at o such that oa :oc
=3:2 is abcd a parallelogram?(3)abcd is a parallelogram. if it's diagonal are equal value of angle anc​​

Answer 1

Answer:

1) Given, a quad. ABCD.

And it's three angles are equal.

Since, ABCD is a quad. . It will have opposite angles.

And according to given,

It's three angles are equal.

Therefore, any two angles from these three will form a pair of opposite angles.

And they will be equal.(according to condition)

This, ABCD is a quad. in which a pair of opposite angles are equal.

Therefore, quad. ABCD is a llgm.