iiAgneez iiAgneez

07-03-2020
Mathematics

contestada

I really need help on these I'm not really good at circles :(

I really need help on these Im not really good at circles class=

Respuesta :

07alexpm 07alexpm

07-03-2020

Answer:

1. 13.962634, ~13.96

2. 21.3802833, ~21.38

Step-by-step explanation:

1. r=4, d=8

C=pi*d=8pi

180 +20˚=200˚

8pi =25.1327412

200/360=5/9

5/9 of 25.1327412=13.962634

2.

5/36 is shaded

A=pi*r^2=49pi=153.93804

5/36 of it is 21.3802833

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