Question

find answer for this
please very urgent

Answer 1

1. 0

2. b) Rectangle

3. 3 parts

Answer 2

1a) Additive identity for rational numbers is zero.

Explanation: We know that for any rational number p/q where q is not equal to zero, 0+p/q = p/q+0 = p/q.

b) The rational numbers that are equal to its reciprocals are  1 and -1.

2a) The diagonals of a rhombus are perpendicular bisector of each other.

b) In a parallelogram PQRS, if ∠SRQ = 90° then parallelogram will be rectangle.

3) To construct a quadrilateral uniquely the number of parts we should know is five.

4) If the square root of any number is 2, then it's cube is 64.

5a)  The square of odd numbers is odd.

b) The unit digit of the square of 782 is 4.

6) Two examples of polyhedron are prism and brick. [A polyhedron is a 3d solid with all flat sides]