BlazingSciencist09 BlazingSciencist09

17-01-2021
Mathematics

contestada

Calculate the area of a sector of a circle that subtends an angle of 45° at the center of the circle, radius 14cm
a) 11cm² b) 77cm²
c) 25cm² d) 56cm²

Respuesta :

musiclover10045 musiclover10045

17-01-2021

Calculate the area of the full circle:

Area = PI x r^2

Area = 3.14 x 14^2 = 615.44 sq. cm

45 degrees is 1/8 of a circle, multiple the area of the circle by 1/8

615.44 x 1/8 = 76.93, round to 77 cm^2

The answer is B. 77 cm^2

Answer Link

Otras preguntas

What value of k makes the statement true? –(k+12) = 6+(–12) a. –18 b. –6 c. 6 d. 18

please help i will thank and rate 5 star! What is the sign of the product? (–19)(2)(37)(–0.8)(–112) A. negative B. positive

Select the proper spelling of the word. preferrence preference preferrance preferance

What factor can motivate people to start a political revolution?

Select the proper spelling of the word. preferrence preference preferrance preferance

write a sentence that mentions a tv show and a snack product

Which of the following is an antonym for the word "uncowed"? brave secretive unimpressed defeated

What mistake did Columbus make that led him to believe he could make it to Asia by sailing west? A. He miscalculated the size of the Earth by more than half B.

Read the sentence. Ali looks good in his favorite color, RED. How is the bolded word used? appositive verb participle gerund

Each person in the United States eats about 65 fresh apples each year. Based on this, how many apples do 3 families of 4 eat each year.