HELP I WILL GIVE BRAINLIEST!!! ​ 5 (2 оценки)
2
tevon792 6 months ago
Светило науки - 6 ответа - 0 помощи

use the formula 22/7 x r^2

r is the radius. the radius is half of the diameter. the diameter is the line that cuts the circle into two parts running through the center

5 (1 оценка)
2
sieeran 6 months ago
Светило науки - 3 ответа - 0 помощи
Let’s start with 8 I will walk you through

The equation for area is r to the second power then time by pie and pie is 3.14 so the diameter is 20 and radius is half the diameter so 20 divided by 2 is 10 know to the second power so time 10 is 100 they time pie

So 8 is 314

Know for 9 they already give me the radius it’s just sideways and you can pull a circle infinite amount of times so 6×6 equals 36 and 36×3.14 is 113.04

9 is 113.04

10 is easy so the radius is 12 so 12 time 12 is 144 them times 3.14 getting you 452.16

10 is 452.15

11 the diameter 14 so 14 divided by 2 is 7 then 7x7 is 49 then time 3.14 153.86

11 is 153.96

So 12 is 25 divided by two To the second power then times 3.14 getting 490.625

12 is 490.625

no just do the rest I taught you to solve 13 but tell you the answer anyways it is 706.5 but try to get that what I taught you

14 14 is gonna be the hardest because it’s morning but it’s pretty easy first we’re gonna find the area of the unshaded part so the radius is three so 3×3 is nine and 9×3.14 is 28.26

The unshaded part is 28. 26

Know the Shaded part this is gonna be harder
We’re going to have to do 10+3 to get the radius of the whole circle so 10+3 is 13 13×13 is 169 then Times that by 3.14 getting 530.66
Then you subtract your last answer from the unsheeted part from that which getting you 502.4

So 14 is 502.4