4 years ago

If the interior angle of a polygon is 170 how many sides does it have

Mathematics

1 answer:

Tpy6a [65]4 years ago

6 0

if interior angle is 170, subtract 170 from 180 to find exterior angle:

180-170 = 10 = exterior angle

the sum of exterior angles is 360 so divide by exterior angle to find sides:

360 /10 = 36 sides

You might be interested in

A rectangle has a width of 6 inches and a perimeter of 26 inches. What is the length of the rectangle?

sdas [7]

The length of rectangle is 7 because if you minus the two sides of 6 which equals 12 from 26 you get 14. then divide 14 by 2 and you get 7

8 0

3 years ago

Find the coordinates of the vertex for the parabola -x^2-4+7

Ipatiy [6.2K]

-X²-4+7
=-X²+3
a=-1 b=0
X=-b/2a
X=0
If X=0, Y=3
So the Vertex is (0, 3).
That's your answer.

6 0

3 years ago

Find the measure indicated. Assume that the lines which appear to be tangent are tangent. Part 4

ella [17]

The angle between the two tangents drawn from an external point to a circle and the angle subtended by the line segment joining the points of the contact at the Centre are supplymentary,

So,

15.) let the unknown angle be x

=》x + 55° = 180°

=》x = 180° - 55°

=》

$\boxed{x = 125°}$

16. let the unknown angle be n

=》n + 80° = 180°

=》n = 180° - 80°

=》

$\boxed{n = 100°}$

8 0

3 years ago

Read 2 more answers

Please help me and answer my quiestions I am so stuck

Andreyy89

Answer:

To find the area of a trapezium all you need to do is, Half the sum of the parallel lines (base and base) and times the distance between them (height).

1. The area is $32cm^{2}$