Answer:
162√3.
Step-by-step explanation:
Area = 1/2 * p * q where p and q are the diagonals.
Here p = 2*9 = 18 and we need to find q.
tan 60 = 0.5q/9
0.5q = 9 tan 60 = 9*√3
q = 18√3
So the area of this rhombus
= 1/2 * 18*18√3
= 162√3
=
Answer:
the third one
Step-by-step explanation:
Answer:
x=17, y=9. (17, 9).
Step-by-step explanation:
x+y=26
3x+8y=123
------------------
x=26-y
3(26-y)+8y=123
78-3y+8y=123
78+5y=123
5y=123-78
5y=45
y=45/5
y=9
x=26-9=17
