Answer:
Hard questions
Step-by-step explanation:
(x-h)²+(y-k)²=r² is the equation of a circle with radius of r
so if x-h=4 and y-k=3 then
4²+3²=r²
16+9=r²
25=r²
sqrt both sides
5=r
radius is 5 units
Answer:
18.0 km
Step-by-step explanation:
according to mid point theorem:
Bf=1/2CE
=45