If the length of the sides of a triangle are in the ratio 4 : 5 : 6 and the inradius of the triangle is 3 cm, then the altitude of the triangle corresponding to the largest side as base is :

• ক 10 cm
• খ 7.5 cm ✅ সঠিক উত্তর
• গ 6 cm
• ঘ 8 cm