What we know:
shape is circular
Area=64π yr²
Area=πr²
circumference=2πr
In order to find circumference we need r=radius. We can use the area to find r by solving for r using substitution of the information we know above.
Area=πr²
64π=πr² substitution
64π/π=π/πr² multiplicative inverse
64=r²
√64=√r² properties of radicals
8=r We would get two solutions, a positive and negative one but we will only use the positive solution since radius is positive
Circumference=2πr
C=2π(8)=16π yards
In any cyclic quadrilateral, angles opposite one another are supplementary, meaning
and given that , we have .
By the inscribed angle theorem,
and since
we have
and it follows that
Put the dot on the 5 and than go down 4 i think this is right but i might be wrong sorry if i am
Triangle A is an Isosceles
Triangle B is Equilateral
Triangle C is Scalene