Answer:
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
8.64 sqft
Base x Height x 1/2 = Triangle Área
4.8 x 3.6 x 1/2 = 8.64
--------------------------------------B
