KA-0152●○○3 points, difficulty 1 of 33 ptLevel 7–8not yet calibratedIn a triangle, one angle measures 30 degrees. Of the other two angles, one is exactly twice the other. What is the largest angle in the triangle?GEO-05Angles on lines, in triangles, in polygonsalso MOD-01, CFT-02
KA-0170●○○3 points, difficulty 1 of 33 ptLevel 11–12not yet calibratedWhat is the size of one interior angle of a regular twelve-sided polygon?GEO-05Angles on lines, in triangles, in polygonsalso CFT-10, CFT-11