PQRS is a cyclic quadrilateral such that PR is a diameter of the circle. If ∠QPR = 670 and ∠SPR =720,then ∠QRS =

Given that PQRS is a cyclic quadrilateral and PR is a diameter of the circle, we can use the properties of cyclic quadrilaterals to find the measure of angle QRS.

In a cyclic quadrilateral, opposite angles are supplementary. Therefore, we can find the measure of angle QRS by subtracting the given angles from 180 degrees.

∠QPR = 670 degrees ∠SPR = 720 degrees

To find ∠QRS, we subtract the given angles from 180 degrees:

∠QRS = 180 - ∠QPR - ∠SPR ∠QRS = 180 - 670 - 720 ∠QRS = 180 - 1390 ∠QRS = -1210

Since the measure of an angle cannot be negative, we can conclude that there is an error in the given information or the problem itself. Please double-check the values provided.