Answer:
Rhombus
Step-by-step explanation:
This undoubtedly has to be a rhombus. When you look at other quadrilaterals for example and want to judge and or differentiate, we see that in the case of a square, the diagonals are equal to one another and they are not congruent. Same can be applied to that of a rectangle as well, it's diagonals aren't congruent, even if they appear perpendicular.
On the other hand, the diagonals of a rhombus is both perpendicular, and at the same time congruent. And thus, that's our answer
Answer:
32
Step-by-step explanation:
Answer:
It is given that : 
As we have to find the Domain of
.
-1 ≤ sin x ≤1

So it is defined for x lying between
.
As meaning of Domain is those values of x for which any function f(x) is defined.
21.9 is the answer so I hope you get it right