Question

MATHEMATICAL
1.
ABCD is a rhombus in which the altitude
from D to side AB bisects AB. Then ZA
and ZB respectively, are
(A) 60°, 120° (B) 120°, 60°
(C) 80°, 100° (D) 100°, 80°
2.The exterior angle of a regular polygon is
one-third of its interior angle. How many
sides does the polygon has?
(A) 10 (B) 8 (C) 9 (D)13
3.
If the diagonals of a quadrilateral bisect each
other at right angle, then it is a
(A) Kite
(B) Parallelogram
(C) Rhombus
(D) Rectangle​

Answer 1

Answer:

1. (A) 60° and 120°

2. (B) 8 sides

3. (C) Rhombus