balalahanaa balalahanaa

24-06-2021
Mathematics

contestada

the size of an interior angle of a regular polygon is 3x. It's exterior is (x- 20)°. Find number if the sides of the polygon.

Respuesta :

04-07-2021

Answer: 12

Step-by-step explanation: Since the angles are supplements, 3x + x - 20 = 180. Solving this, we find that x = 50, and 3x = 150. Since dodecagons have interior angles of 150 degrees, the answer is 12 sides.

Answer Link

Otras preguntas

The purpose of the immigration laws of the 1920s, including the johnson-reed act, was to

PLEASE HELP ME ASAP!!! Humans have been using fossil fuels to create energy. Where do fossil fuels get the energy that is stored in them? Plants that have been

Potassium-40 has a half-life of 1.3 billion years. As the potassium-40 isotope decays, it becomes argon. If a rock was formed with 12 g of potassium-40, approxi

The top one please!!!!!!!!

¿Qué palabra es el opuesto (opposite) de 'inocente'? castigo ley testigo culpable

The sum of two numbers is 24 and their difference is 2. What are the numbers

Psychologists refer to a high ratio of positive to negative feelings as:

Someone please help me

Find the perimeter and area

Find the gerund phrase in this sentence. Identify each phrase as a subject, a predicate nominative, a direct object, or an object of a preposition. She is consi