WHAT PERCENT OF THE AREA OF THE TRIANGLE IN THE FIGURE IS SHADED

14. - DE THI TOAN QUOC TE KANGAROO NAM 2016 LOP 9 10 CO DAP AN DE TIENG ANH
DE THI TOAN QUOC TE KANGAROO NAM 2016 LOP 9 10 CO DAP AN DE TIENG ANH

14. What percent of the area of the triangle in the figure is shaded?

(A) 80% (B) 85% (C) 88% (D) 90%

(E) impossible to determine