Question

the area of a triangle ABC is 8 square centimetre if the height ad is 3 cm find the length of side BC

Answer 1

hey
_______________

area of triangle = 18 cm^2 (given)
height (AD) = 3 cm (given)
length of side (BC) = ?

area of triangle = 1/2 * base * height
18 = 1/2 *3*BC
18*2/3 = BC
36/3 = BC
BC = 12

hence BC is 12 cm

as u said it should be 18 instead of 8 thats why i used :)

hope helped
______________