Which statement implies that qs must be the diameter?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy