Answer:
1. parallelogram
2. trapezoid
3.rectangle
4. parallelogram
5. trapezoid
6. rhombus
7.rectangle
8. rhombus
7290in ^2
Step-by-step explanation:
covert 30yd to feet which equals too 90ft.
Then multiple 90 x 81 = 7290
an = 1/2 (n) (n+1)
1,3,6,10,.........
3-1=2
6-3=3
Each term is different so there is no common difference. It is not an arithmetic sequence
3/1=3
6/3 =2
Each term is different so there is no common ratio. It is not a geometric sequence
1 3 6 10
+2 +3 +4
a1 = 1
a2 = 3
a3 = 6 = 2*3
a4 = 10 = 2*5
As,
=0.301029+0.845098+1.13943
=2.26007
=2.260(approximate)
