I’m not sure if your answer is right but here’s how to solve it
Answer:
The area of the circle is 379.94 mm²
Step-by-step explanation:
To solve this problem we need to use the area formula of a circle:
a = area
r = radius = 11 mm
π = 3.14
a = π * r²
we replace with the known values
a = 3.14 * (11 mm)²
a = 3.14 * 121 mm²
a = 379.94 mm²
Round to the nearest tenth
a = 379.94 mm² = 379.9 mm²
The area of the circle is 379.9 mm²
C because the x-axis and the y-axis are switched, basically.
Answer:172.5
Step-by-step explanation:Xoxo
1 step: ,
, then
.
2 step: , then
and
will have form
.
3 step: Solve this system
and dividing first equation on second we obtain
. So,
and
,
- the common ratio.
4 step: Insert
into equation
and obtain
, from where
.