Izsaki doto leu lielumus grdos: space 1. space space straight pi over 12 space 2. space space space fraction numerator 2 straight pi over denominator 9 end fraction space 3. space space space fraction numerator 5 straight pi over denominator 6 end fraction space 4. space space space space fraction numerator 3 straight pi over denominator 2 end fraction 7 : a. 1. 15; 2. 45; 3. 150; 4. 270 b. 1. 15; 2. 40; 3. 150; 4. 270 c. 1. 20; 2. 40; 3. 150; 4. 270 d. 1. 20; 2. 45; 3. 150; 4. 270