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Math Help - Please help me out with these questions about geometry

  1. #1
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    Please help me out with these questions about geometry

    2. Two vertices of equilateral Δ DEF are D(2,6) and E(8,3). The triangle undergoes a dilation with scale factor 4. What is the perimeter of the image D'E'F'?: *
    a.26.8
    b.76.4
    c.20.1
    d.80.5

    3. Write in standard form the equation of the line that passes through the points (-3,-2) and (9,2).: *
    a.y = (1/3) x – 1
    b.3x + y = -25
    c.x - 3y = 3
    d.y = 3x - 25

    4. Given 4x – 2y = 8 and 2x – 4y = 0, are these lines parallel, perpendicular or neither?: *
    a.Parallel
    b.Perpendicular
    c.Neither
    d.There is not enough information to answer this question
    5. Find the value of x in triangle ABC.: *

    https://prv.tutor.com/apply/applicat...E-F0F6C8B85084

    a. 3√10
    b. 4√15
    c. 1√6
    d.There is not enough information to solve.

    6. Find the perimeter of ΔDEF with vertices D (2, -2), E (-5, 1), and F (0, 6).: *
    a.11.5 units
    b.14.2 units
    c.22.9 units
    d.57.4 units

    7. The vertices of ΔABC are A(1,8) B(9,2) C(-3,-4). Which of the following points is not a vertex of ΔDEF whose vertices lie on ΔABC and whose perimeter is ½ of ΔABC’s?: *
    a.(4,3)
    b.(-1,2)
    c.(5,5)
    d.(3,-1)

    8. A side of an equilateral triangle measures 16cm. Find the area of the triangle.: *
    a. 128√3
    b. 64
    c. 64√3
    d.There is not enough information to solve.

    9. Find the height of a cylinder that has a lateral area of 606.2 m2 and a radius of 7.2 m. Round to the nearest tenth.: *
    a.6.2 m
    b.13.4 m
    c.26.8 m
    d.560.9 m

    10. Find the value of angle 1 in the following diagram.: *

    https://prv.tutor.com/apply/applicat...B-E07D3E173E07

    a. 7.5°
    b. 60°
    c. 30°
    d. 35°

    11. What is the surface area of a prism whose bases are triangles with sides measuring 5 meters, 12 meters, and 13 meters, if it is 20 meters tall?: *
    a. 600 m2
    b. 630 m2
    c. 660 m2
    d. 690 m2

    12. What is the inverse of the following statement, ''If a figure is closed, then it is a polygon''?: *
    a.''If a figure is not a polygon, then it is not closed''
    b.''If a figure is closed, then it is not a polygon''
    c.''If a figure is not closed, then it is a polygon''
    d.''If a figure is not closed, then it is not a polygon''

    13. Find the volume of the cone to the nearest tenth.: *

    https://prv.tutor.com/apply/applicat...E-F6F21AF72BAE

    a. 12.6 ft3
    b. 20.9 ft3
    c. 50.3 ft3
    d. 83.8 ft3

    14. This game board is a circle inscribed in a 10 inch square. The circle is divided into 8 equal sectors. Find the probability of hitting the shaded area.: *

    https://prv.tutor.com/apply/applicat...D-7E04EFB09E8A

    a.55%
    b.61%
    c.68%
    d.73%

    15. Find the coordinates of A (3, -2) after it has been reflected over the graph of x = 1 and then x = 0: *

    https://prv.tutor.com/apply/applicat...E-F0F6C8B85084

    a.(-3, 4)
    b.(3, -4)
    c.(1, -2)
    d.(-1, -2)

    16. It cost the Browns $216 to have a 9ft-by-12ft floor refinished. At that rate how much would it cost to have a 12ft-by-16ft floor refinished?: *
    a.$384
    b.$240
    c.$360
    d.$268

    17. A line segment AB is 1 cm long. What is the locus of points 2 cm from both A and B?: *
    a.1 point
    b.2 points
    c.0 points
    d.4 points

    18. AS is perpendicular to RT, A is the midpoint of RT. Which of the following ways will be used to prove ΔRAS = ΔTAS?: *

    https://prv.tutor.com/apply/applicat...3-67205B11713B

    a.HL
    b.ASA
    c.SSA
    d.SAS

    19. Find the area of a regular octagon with a 12 inch radius.: *
    a. 982 in2
    b. 407 in2
    c. 814 in2
    d. 540 in2

    20. A boat has a speed in still water of 25 mi/h. It is crossing a river that flows directly south at 7mi/h. If the boat heads directly west what is the boat’s resulting speed and direction?: *
    a. 26 mi/h, 16° south of west
    b. 26 mi/h, 16° west of south
    c. 25 mi/h, 74° west of south
    d. 28 mi/h, 74° south of west

    21. If ∠1=4x-12, ∠2=6y-10, ∠3=3x-4 and ∠4=5y+25, find the measure of ∠3.: *

    https://prv.tutor.com/apply/applicat...2-AFB25084CBAF

    a. 15°
    b. 28°
    c. 100°
    d. 80°

    22. The lateral areas of two similar prisms are 196 in2 and 324 in2. The volume of the smaller prism is 686 in3 . Find the volume of the larger prism.: *
    a. 882 in3
    b. 1458 in3
    c. 1134 in3
    d. There is not enough information to solve.

    23. Find the area of kite LMNO if LN=16.: *

    https://prv.tutor.com/apply/applicat...B-2CDF2267A355

    a.136
    b.168
    c.336
    d.There is not enough information to solve.

    24. What additional information is sufficient to prove that parallelogram PQRS is also a square?

    I. PQ=QR=RS=SP

    II. ∠P, ∠Q, ∠R,∠S are right angles

    III. PR is perpendicular to QS: *
    a.I only
    b.II only
    c.I and II only
    d.I and III only
    25. In parallelogram ABCD, DE and CF are altitudes. Find CF to the nearest tenth.: *

    https://prv.tutor.com/apply/applicat...8-F2B75C2C5E57

    a.8.1 in
    b.6.7 in
    c.13.4 in
    d.9.2 in
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  2. #2
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    many questions....looks like someone is asking people to finish his homework for him ....
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  3. #3
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    Actually no this isn't my homework. I took about an hour to type out those questions. There are about 200 questions that I have to do to study for a test and these are the ones that I am having trouble with. So if anyone could PLEASE help me it would be great. Thanks!
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  4. #4
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    2d 3a 4c 5b 6c 7a 8c 9b

    10: what does that 40 degrees stand for???

    11c 12b 13a 14b 15c 16a

    17: diagram?

    18d 19b 20a 21d 22b 23b 24c 25d
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  5. #5
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    Too many questions in one thread. And the purpose of MHF is not to provide solutions to such a large volume of questions. You need to ask your teacher for solutions.
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