Question

Can some on please check my answers please??????? I will give a medal




1. In ABC, centroid D is on median . AD = x + 5 and DM = 2x – 1. Find AM.

7/3*
11
5
12

2. Where can the lines containing the altitudes of an obtuse triangle intersect?

I. inside the triangle
II. on the triangle
III. outside the triangle (1 point)


I only
I or II only*
III only
I, II, or III

3. Where can the medians of a triangle intersect?

I. inside the triangle
II. on the triangle
III. outside the triangle


I only*
III only
I or III only
I, II, or III

4. Which labeled angle has the greatest measure? The diagram is not to scale.

angle 1
angle 2
angle 3*
not enough information

5. Three security cameras were mounted at the corners of a triangular parking lot. Camera 1 was 151 ft from camera 2, which was 122 ft from camera 3. Cameras 1 and 3 were 139 ft apart. Which camera had to cover the greatest angle?
camera 1*
camera 2
cannot tell
camera 3

6. Which three lengths cannot be the lengths of the sides of a triangle?
25 m, 16 m, 10 m
15 m, 13 m, 12 m
18 m, 5 m, 10 m
8 m, 8 m, 15 m

7. If mDBC = 65º, what is the relationship between AD and CD? The diagram is not to scale.




AD is greater than CD
not enough information
AD less than CD
AD = CD*

8. What is the range of possible values for x? The diagram is not to scale.


0 less than x less than 11
–3/5 less than x less than 11
11 less than x less than 58
3/5 less than x less than 11*

Fill in the Blank

9. What is the orthocenter of the triangle with two altitudes given by the lines x = –1 and y = x +1?

my answer- (-1,0)

Answer 1

1. AD = 2 DM

Answer 2

x=7/3 but it is not the answer to the question.

Answer 3

AM = AD + DM = 3x +4 = 11

Answer 4

so its 11?

Answer 5

ok what about my other answers are they right?

Answer 6

2. is C. not B

Answer 7

no