On the unit circle, what is angle measurement in radians for the coordinate (-1/2,√3/2)?

(Can u also solve the rest too plz )

Find the area of a parallelogram with base 15 yards and height 21 2/3

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle