Find the area of the following circles. a. A circle with a 8-inch radius b. A circle with a 10-kilometer radius c. A circle with a 14-yard diameter d. A circle with a 22-centimeter diameter

Question

24-06-2018
Mathematics

contestada

Find the area of the following circles. a. A circle with a 8-inch radius b. A circle with a 10-kilometer radius c. A circle with a 14-yard diameter d. A circle with a 22-centimeter diameter

Respuesta :

Otras preguntas

_______ refers to large family-owned companies that develop into giant conglomerations, such as Samsung, LG, and Hyundai, in South Korea. A. Kaizen B. C

More than any other region, America s Far West attracted immigrants from __________. Asia the German states Great Britain Mexico

Which is a TRUE statement about salt water? a. It is a pure substance. b. It is chemically combined. c. It is formed using a set ratio of components. d. It

Which of the following was a major reason the United States exchanged neutrality for war in 1917? a. Americans felt it was their duty to come to the aid of the

Which of the following phrases have parallel meanings? a. Appearances are deceptive. b. As you sow, so shall you reap. c. Every picture tells a story. d. Fa

The printing of books from carved wooden blocks was developed during the _______ dynasty of China. a. Mongol b. Ming c. Manchu d. T'ang

Unrealistic portrayals of slim bodies can encourage people to lose an unhealthy amount of weight. Being underweight or malnourished can lead to A.liver abnormal

Which one of the following drugs cause weight gain as a side effect? a. Antacids b. Ibuprofen c. Antidepressants d. Antihistamines

And when Sir Mordred felt that he had his death’s wound, he thrust himself with the might that he had up to the burr of King Arthur’s spear, and right so he

Burkina Faso represents a nation in which a. there is a strong middle class, allowing women to marry later, find employment and have small families. b. long l

Luv2Teach Luv2Teach · Answer 1 · 2018-06-24T07:36:28+02:00

Area of a circle is [tex]A= \pi r^2[/tex]. The first one, a, the radius squared is 8*8=64. So [tex]A=64 \pi [/tex]. If you multiply in pi as 3.14, you'll have 200.96 square inches. The second one, b, the radius squared is 10*10=100. So [tex]A=100 \pi [/tex] square kilometers. If you multiply in pi as 3.14 you'll have 314 square kilometers. The third one, c, the radius squared is 14*14=196. So [tex]A=196 \pi yd^2[/tex]. Or you could multiply in pi as 3.14 to get 615.44 yd squared. For the last one, d, the radius squared is 22*22=484 cm. Therefore, [tex]A=484 \pi cm^2[/tex], or multiply in 3.14 for pi to get 1519.76 cm squared. There you go!

ogechukwubenedict ogechukwubenedict · Answer 2 · 2020-01-29T13:32:31+01:00

ogechukwubenedict ogechukwubenedict

29-01-2020

Answer: A. 201.14inches²

B. 314.28km²

C. 154yds²

D. 380cm²

Step-by-step explanation: the area of a circle is given by [pie] (22/7) multiplied by the square of the radius

Radius is half the diameter of the circle

Applying the formula 22/7 x r²:

A. 22/7 x 8² = 201.4inch²

B. 22/7 x 10² = 314.28km²

C. 22/7 x (14/2)² = 154yd²

D. 22/7 x (22/2)² = 380cm²

Kudos!

Answer Link