Question

Find the area of triangle abc in which bc is equal to 8 cm ac is equal to 15 cm and ab equals to 17 cm find the length of altitude drawn on a b

Answer 1

Answer:

Step-by-step explanation:

Semi perimeter = s

s =( AB +BC + AC)/2

s = (17 + 8 + 15)/2 = 40/2 = 20cm

By Heron's formula, area of triangle ABC,

Area = √s(s-a)(s-b)(s-c)

         = √20 (20 - 17) (20 - 8) (20 - 15)

         = √20 (3 x 12 x 5)

         = √20 x 180

         = √3600 = 60cm²

Again area of triangle = 1/2 base x height\

                            60   = 1/2 x 17 x h

                             h = 120/17

                             h = 7.05cm

Mark it brainliest