Question

fill in blanks
1. A parallelogram having all sides equal is called a _______.
2. A quadrilateral having exactly one pair of parallel sides is called a __________.
3. If the consecutive sides of a parallelogram are equal , then it is necessary a ________.
4. Sum of interior angle of a polygon of 10 sides is _______.
5. The number of sides of a regular polygon whose each exterior angle is 60° is _________.​

Answer 1

Answer:

a. A parallelogram with all sides equal is called a rhombus. Mathematics.

b. A trapezium is a quadrilateral that has only one pair of parallel sides.

c. If consecutive sides of a parallelogram are equal, then it is necessarily a rhombus.

d. The sum of the measures of the interior angles of a decagon (10 sided polygon) is 1,440.

e. The number of sides of a regular polygon whose each exterior angle is 60° is 6