horserider13 horserider13

12-05-2016
Mathematics

contestada

What is the approximate area of a circle with a radius of 13cm? A.40.8cm² B.530.7cm² C.784cm² D.2461.8cm²

Respuesta :

ChanceCmc ChanceCmc

12-05-2016

It would be B (530.7) because if you do 3.14 x 13 x 13 (Or to the second power) Then you get 530.66, the round to the nearest tenths

Answer Link

SunnyD3000 SunnyD3000

12-05-2016

the area of a circle can be found by the formula A=pi*r^2. Pi equals 3.14 so multiply that by 13^2. 13^2 equals 169. So 3.14 * 169 = 530.66 cm^2 and that rounded is B) 530.7cm^2

Answer Link

Otras preguntas

quiero saber que es plasma

Solve the inequality, 9x+8>8x-2 for x.

Which of the following methods would be the easiest to use to solve x^2+5x-6 = 0?

-8x-5y=-1 ordered pairs as solutiion of linear equation

If the measures of two sides of a triangle are 3.1 feet and 4.6 feet, which is the LEAST possible measure to the nearest tenth for the third side?

how did the cold war affect popular culture in the 1950s

When did winston churchill became prime minister?

What is the appositive in this sentence? P.L. Travers's book Mary Poppins was recommended to me by the librarian. A. Travers's book B. the librarian C. was

The continental crust is _________ than the oceanic crust and seems to "float" on the mantle. A) thinner B) younger C) less dense D) mostly basalt Submit

Need help!!!!!!!!!!!!