Question

what is the altitude of a triangle?

Answer 1

it's the line segment that goes from one vertex to the opposite side and this line segment is perpendicular to the opposite side

Answer 2

Here's a triangle

Answer 3

and here is an altitude drawn in

Answer 4

so if i have a triangle with a base of 3cm longer than its altitude. find the altitude if the area of the triangle is 44 cm?

Answer 5

altitude is another name for height of a triangle

Answer 6

and remember

Area of triangle = (base * height)/2

Answer 7

A = (bh)/2

44 = ((h+3)h)/2

44*2 = h(h+3)

88 = h^2 + 3h

h^2 + 3h - 88 = 0

Solve that for h to find the height or altitude

Answer 8

Thanks!
if the altitude of a triangle is 4cm shorter than the base how would i set up an equation?

Answer 9

if the altitude of a triangle is 4cm shorter than the base

then

h = b-4

Answer 10

the altitude of a triangle is 4cm shorter than the base. find the altitude if the area of the triangle is 90cm

Answer 11

A = (bh)/2

90 = (b(b-4))/2

90*2 = b(b-4)

180 = b^2 - 4b

b^2 - 4b - 180 = 0

Answer 12

how will that factor

Answer 13

It doesn't, you'll have to use the quadratic formula.

Answer 14

ok thanks

Answer 15

np

Answer 16

could you help with some other questions that i have posted?

Answer 17

sure

Answer 18

are they already posted?

Answer 19

the dimensions of a framed picture are 50 cm by 30 cm. the area of the picture itself is 444cm. find the distance from the edge of the picture to the edge of the frame if this distance is uniform around the picture?