Question:

Quick pre algebra help?!?!?

by  |  earlier

0 LIKES UnLike

1: For # 1 - 16 answer True or False.

Two rays that have the same endpoint form an angle.

True

False

-

-

2: Two triangles with sides of equal length are congruent.

True

False

-

-

3: An angle measuring 112o is called acute.

True

False

-

-

4: Vertical angles have the same measure.

True

False

-

-

5: The sum of the measures of the angles of a triangle is 360o.

True

False

-

-

6: If two angles of a triangle are 21o and 74o, then the third angle is 82o.

True

False

-

-

7: A line segment is a piece of line with two endpoints.

True

False

-

-

8: A right triangle is a triangle with an angle measuring 90o.

True

False

-

-

11: Parallel lines never intersect.

True

False

-

-

13: Similar triangles have congruent angles.

True

False

-

-

15: A point has location and area.

True

False

-

-

18: If these are similar triangles and AB = 4, CB = 6, and DE = 10, then EF = _______.

10

13

15

17

19: Simplify:

√196

11

12

13

14

20: √169

12

13

14

15

21: __________ is a perfect triple.

8, 16, 24

12, 16, 24

14, 22, 30

15, 36, 39

22: The legs of a right triangle are ________ congruent.

sometimes

always

never

equally

23: The Pythagorean Theorem works on ____________ triangles.

all

acute

right

straight

24: If a = 12 and b = 4, then c = _________

14

16

√148

√160

25: If a = 2 and b = 8, then c = _________

√56

√63

√68

√72

26:

Find the surface area of a cylinder if:

h = 6 m

r = 4 m

172.2 sq m

196.3 sq m

212.3 sq m

251.2 sq m

27:

Find the surface area of a cone if:

h = 12 m

r = 2 m

s = 9 m

69.1 sq m

72.1 sq m

72.3 sq m

76.9 sq m

28:

Find the surface area of a rectangular prism if:

l = 13 m

w = 4 m

h = 8 m

245 sq m

326 sq m

376 sq m

396 sq m

29: What is the perimeter of the star shown in the following illustration? All the side lengths are equal (3 feet).

3 ft

30 ft

34 ft

60 ft

30: What is the area of the polygon shown in the following illustration? Length is 8 m, height is 10 m, and the height of the triangle measures 4 m.

60 sq m

80 sq m

120 sq m

100 sq m

 Tags:

   Report

2 ANSWERS


  1. 18. 15

    19.  14

    20. 13

    thats all i know && when they ask you to simplify.. they mean the square root of that number...


  2. 1. True

    2. True?

    3. False, it's obtuse

    4. True

    5. False, it's 180

    6. False, the total angle degrees is 177

    7. True

    8. True

    11. True

    13. True

    15. False, just location

    17. I think it's 17, but I'm not sure

    19. 14

    20. 13

    21. I don't feel like doing it out, sorry, but it's the pythagorean theorum (in this case: first number squared plus the second number squared equals the third number squared)

    22. sometimes

    23. right

    24. square root of 160

    25. square root of 68

    26. 196.3

    28. 376

    29. they're all wrong. A star has 8 sides, so to find the perimiter, you would multiply 3*8, which is 24

    Most of this wasn't prealgebra. It's geometry.

Question Stats

Latest activity: earlier.
This question has 2 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.
Unanswered Questions