I really need help please

Answer:

A) Each interior angle of the Regular Hexagon = 120°

B)The measure of the supplementary angle of an interior angle is  60°

Step-by-step explanation:

Regular Hexagon : A 6 sided polygon which has all 6 interior angles as  EQUAL is called a regular hexagon.

So, here are 6 interior angles of the hexagon are equal.

Also, Sum of all interior angles of an hexagon = 720°

Let us assume the each angle of the hexagon = m

⇒ m + m + m + m + m  + m = 720°

or, 6 m = 720°

or, m = 720° / 6 = 120°

⇒ Each interior angle of the Regular Hexagon = 120°

Now, a side is extended to form an exterior angle.

Let us assume the measure of that exterior angle  = k

⇒ k + m = 180 °   ( as k and m are SUPPLEMENTARY ANGLES)

or,  k = 180 - 120   = 60 °

or, k = 60 °

Hence,  the measure of the supplementary angle of an interior angle is  60°

Answer:

C

Step-by-step explanation:

Use the pythagorean theorom

a^2 + b^2 = C^2

convert so it goes to the problem

c^2 - a^2 =b^2

10^2 - 5^ = 100 - 25 = 75

srt. 75 = 5 sqrt.3

Answer:

The hypotenuse = leg 1 + leg 2

Hypotenuse = 10

Leg 1 = 5

Leg 2 = ?

10^2 - 5^2 = x

100 - 25 = 75

Answer = sqrt of 75

Answer = C

5 sqrt. 3