Question

Calculate the area of triangle WXY with altitude YZ, given W(2, −1), X(6, 3), Y(7, 0), and Z(5, 2).

8 square units
9.4 square units
7.7 square units
12 square units

Answer 1

you need to find the distances for a base and height

base is WX and height is YZ

what is our distance formula?

Answer 2

hmm

i wonder if we can generalize it so we dont have to sqrt

A = 1/2 bh

if we find b^2 and h^2

A' = 1/2 (bh)^2

either way theres a sqrt but waitning till the end might be useful at times

Answer 3

When i drew the picture it didn't make sense @amistre64

Answer 4

if pictures, we can make a rectangle about the triangle

Answer 5

move it to the origin add -2,1 to it all