Question

In an equilateral triangle , side of its is 24 cm , find the lenght of its altitude

Answer 1

Answer:  Step-by-step explanation: Let a be the side of equilateral triangle = 24 cm Let ABC be triangle Let altitude be AD cm altitude of equilateral triangle divides the opp. side in equal parts  So, BD = 24/2 = 12 cm IN triangle ABD AB² = AD²+BD² 24²  = AD² + 12² 576 - 144 = AD² 432= AD² √432 = AD 20.78 cm = AD = altitude