(c) An aircraft left Mauritius for Singapore at 9.45 p. m.
It has to cover a distance of 1600 km at a speed of 400 kmh-!.
At what time will it reach Singapore?

Step-by-step explanation:

1600km / (400km/h) = 4 hours.

4 hours after 9:45p.m. => 1:45a.m.

Hence it will reach Singapore at 1:45a.m. the next day. (assuming same time zones)

∠1≅∠2 by the alternate exterior angles theorem.

step-by-step explanation:

given, a ∥ b and ∠1 ≅ ∠3 .we have to prove that e ∥ f

we know that ∠1≅∠3 and that a || b because they are given. we see that by the alternate exterior angles theorem. therefore, ∠2≅∠3 by the transitive property. so, we can conclude that e || f by the converse alternate exterior angles theorem.

we have to fill the missing statement.

transitivity property states that if a = b and b = c, then a = c.

now, given ∠1≅∠3 and by transitivity property ∠2≅∠3 .

hence, to apply transitivity property one angle must be common which is not in result after applying this property which is ∠1.

the only options in which ∠1 is present are ∠1 and ∠2, ∠1 and ∠4

∠1 and ∠4 is not possible ∵ after applying transitivity we didn't get ∠4.

hence, the missing statement is ∠1≅∠2.

so, ∠1≅∠2 by the alternate exterior angles theorem.

6.5

step-by-step explanation:

you said it was in the question

~courtney