892 x 18 = 16,056
First multiply 2 with 18 and do the same with 9 and 8 then multiply 2 with one and do the same with 9 and 8 then add up the two sums which give you 16,056
Answer:
9: not congruent AB=-8 and CD=10
10: not congruent AC=-3 and BD=5
11: congruent BC=1 and AD=1
The answer should be 2(2b+3)
The answer is 63,800 mi²
hoped this helps
72cm
you multiply the outside length (6cm each) by how many there are