Question

Can anybody help me with this?

Answer 1

Is C the correct answer for question 17?

Answer 2

Is B the correct answer for question 18?

Answer 3

vertical angles http://www.mathsisfun.com/geometry/vertical-angles.html

for 18, you are proving two triangles are congruent... you usually use one of
side-side-side
side-angle-side
angle-side-angle

look at the proof.... how many sides and angles did they show are congruent (and in what 2 triangles) ?

Answer 4

@phi could you please help me? I am confused :(

Answer 5

on your figure, mark what step 7 says, and what step 8 says
step 9 uses "vertical angles" so do you think it is talking about sides or angles ?

Answer 6

I think angles!

Answer 7

go step by step: what does step 7 talk about ?

Answer 8

(this is for question 18)

Answer 9

what about question 17?

Answer 10

@phi

Answer 11

for question 17, it says the reason given is "vertical angles"

two vertical angles are formed by lines crossing

Answer 12

what two angles do we want to show are = ?

Answer 13

in these problems, angles are given by 3 letters, where the middle letter is at the vertex of the angle

Answer 14

Is D the correct answer for question 17?

Answer 15

yes, now mark those two angles.

for question 18,

what do steps 7, 8 and 9 talk about ? list angle or line for each step

Answer 16

Is C the correct answer for 18?

Answer 17

make it steps 8, 9 and 10

Answer 18

yes

Answer 19

I am sorry... is D then the answer?

Answer 20

@phi

Answer 21

With this question @genius12

Answer 22

@RH 17 is not C. Try again.

Answer 23

Note that this has to with the "order" of the angles, i.e. each letter has to correspond to the position of the vertex in each triangle.

Answer 24

Is D correct for 17? @genius12

Answer 25

@RH Yes.

Answer 26

And for question 18, would C be correct? @genius12

Answer 27

ya should be

Answer 28

Thanks a lot!!!