math help please :D?

Question

figure 2 --> http://www.learningbygrace.org/geom/images/14.3_ch.test.gif

Use Figure 2 above. Compare your biggest sides, and notice that BA and DE are the same side, so BA = DE. Which side(s) is(are) the longest of the entire figure?

AB
DF
DE and DF
AC and BC

are the choices :D

umm... these are hints

Ang D = 60 and m Ang E = 50 and m Ang F = 70

Ang A = 60 and m Ang B = 55 and m Ang C = 65

Answer 1

Depends on the angle measures of A, B and C. The longest side will be opposite the biggest angle. If the diagram is to scale, the biggest angle appears to be C, thus AB (or BA) would be the longest side of the triangle. Similarly, F appears to be equal to angle C and also the biggest in DEF, so the longest side of that triangle would be DE.

Edit: Ah! Now you have provided some angle measures. You need them to solve the problem...

Given:
Ang D = 60 and m Ang E = 50 and m Ang F = 70

So the longest side in the lower triangle would be opposite angle F (namely side DE)

Given:
Ang A = 60 and m Ang B = 55 and m Ang C = 65

Again the longest side in the top triangle would be opposite angle C (namely AB).

So the answer is AB (or DE).

Answer 2

The opposite side to the largest angle in the triangle is the longest side. Based on your figure, BA and DE is the longest side... since by inspection, they have the largest angle opposite to them.

Answer 3

You can not tell merely by just looking at the figure. It is not given whether the figure is a parallelogram, although it looks like one. But, we do not base our solution on how a figure seems to look like. Additional information about the figure must be given before we can answer the question.

teddy boy

Answer 4

▲ - Angle.

If it's the length of the sides then: AB = DE = longest side.
If it's the biggest angle you are looking for then:
▲ ACB = ▲ EFD = Biggest angle.

Answer 5

a bit of a problem, we can't see the diagram

Answer 6

BA and DE.