In a convex quadrilateral, the measure of the largest angle is twice the measure of the smallest angle, and the other two angles are both right angles. How many degrees are in the largest angle?
The four interior angles will sum to 360“
So call the smallest angle x and the largest angle 2x
90 + 90 + x + 2x = 360
180 + 3x = 360 subtract 180 from both sides
3x = 180 divide both sides by 3
x = 60°
And the largest angle = 2 (60°) = 120°