The radius, diameter, or circumference of a circle is given. find the missing measures. round to the nearest hundredth if necessary. d = 22.7 mm., r = ? , c = ?

r= 11.35 mm

C= 71.28 mm

Step-by-step explanation:

Formula to find the circumference of a circle is given by :-

, where r is the radius of the circle .

Given : Diameter d= 22.7 mm

Since radius is half of diameter .

Then,

Circumference =

Hence, C= 71.28 mm

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europa2433

step-by-step explanation:

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq