points lines planes and angles 2?

Question

10. The shortest distances from a point to a straight line is
a)a parallel through the point to the line
b)the perpendicular from the line to the point
c)the perpendicular bisector of the line
d)a vertical line through the point
11. in which one of the following pairs of angles are the angles always equal to each other?
a)vertical
b)adjacent
c)complementary
d)supplementary
15.find the angle complementary to the angle 80*25'
a)9*35'
b)90*
c)99*35'
d)180*
16.what affects the size of an angle?
a)the length of its sides
b)its location
c)the number of degrees in its supplement
d)the amount of rotation of one side
17.through what angle dose the minute hand of a clock turn in 12 minutes of time?
a)12*
b)36*
c)72*
d)120*
19.to construst an angle equal to a given angle. you need a pencil and a
a)protractor only
b)compass only
c)protractor and a straightedge
d)compass and a straightedge
20.what are two straight lines that cross each other at a right angle?
a)perpendicular
b)parallel
c)curved
d)broken

Answer 1

b, a, a, d, c, c, a.

Answer 2

10 = B
11 = D
15 = C
16 = C
17 = C
19 = A
20 = Perpendicular

Answer 3

No, i do no longer think of that line #4 factors close to the galactic center. Draw a triangle ABC. area BC is ninety.fifty 8 stages, area BA is 28.01 stages. (around arc lengths on the celestial sphere could be measured as angles.) perspective B-C-A is 60.2 stages. element C is the place interior the galactic airplane and ecliptic airplane meet. Arc BC is the ecliptic airplane, arc AC is the galactic airplane. element A is in direction of the galactic center. the perspective which you're asking approximately is the arc AC, that's approximately ninety.sixteen stages.

Answer 4

10.)B
11.)B
15.)C
16.)D
17.)C
19.)C
20.) perpendicular
100% sure