1. Marque a alternativa em que o número mostrado, NÃO é um número racional. Apenas uma das alternativas deverá ser marcada. * 5 pontos 3/1 7/2 8/2 √19

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

- 70

this is the answer for you hope it

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.