Question

Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Triangle ABC with altitude BD is shown. Point A is at 2, 1. Point B is at negative 1, 4. Point C is at 2, 6. Point D is at 2, 4.

7.5

9.5

10

15

Answer 1

Help anyone

Answer 2

Last quesion

Answer 3

Im thinking 9.5 Not sure

Answer 4

@amistre64

Answer 5

@hartnn

Answer 6

@ganeshie8

Answer 7

@texaschic101

Answer 8

explain why your thinking its 9.5

Answer 9

Im not sure area is L x W or 1/2 L x W I have no idea on how to do this

Answer 10

Segment BD is an altitude (height) of triangle ABC.

Find the area of the triangle.

Triangle ABC with altitude BD is shown.

Point A is at 2, 1.
Point B is at negative 1, 4. <-- use math notation, not words ...
Point C is at 2, 6.
Point D is at 2, 4.

lets move it so A is at 0,0, subtract A from the rest all the points


Point A is at 2, 1.
-2 -1
0 0

Point B is at -1, 4.
-2 -1
-3 3

Point C is at 2, 6.
-2 -1
0 5

Point D is at 2, 4.
-2 -1
0 3

point d is useless to us really, so .... height is from y=0 to y=3
width is from A to C from 0 to 5

Answer 11

Area is 5*3/2 = 15/2

Answer 12

plotting the out would have done the same effect ....

Answer 13

Thank you so much. I totally get it now. Thank you I really appreciate your help.

Answer 14

good luck