English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Calculate the area of the triangle with the following vertices:
(-3, -3), (0, -3), (1, 1)

A 4 sq units
B 12 sq units
C 6 sq units
D 15 sq units
E 9 sq units
F 2 sq units

2007-08-21 05:45:15 · 5 answers · asked by Anonymous in Science & Mathematics Mathematics

5 answers

if a(-3,-3), b(0,-3) & c(1,1)

i can see a base along the y=(-3) axis ... (a to b)
if c is @ (1,1) (between the two base points), the altitude from (1,1) to (1,-3) is 4 units

a base of 3 ((-3,-3) - (0,-3)
a height of 4 [ (1,1) to (1,-3)]

area is 1/2 b*h ..... 1/2 ( 3*4) = 6

c (si)

2007-08-21 06:00:53 · answer #1 · answered by Brian D 5 · 1 0

Area = 1/2 x base x height.
if you draw the diagram, you'll see that base = 3 units and height = 4 units
so Area = 1/2 x 3 x 4
= 6 sq units
Answer = C.

2007-08-21 12:54:45 · answer #2 · answered by Southpaw 5 · 1 0

A = 1/2*3*4 = 6

ans: C

2007-08-21 12:53:13 · answer #3 · answered by gebobs 6 · 0 0

If you follow my answer to your other question, you'll be able to do these by yourself--quickly, easily, and without spending 5 points.

Please don't shortchange yourself by merely accepting numerical answers. If you're in Algebra 2, you need to know how to do these things. Besides, it's fun to have skillz.

A better question to ask is:
"Can anyone explain how to find the area of a triangle, such as..."

The number 6 does not explain much on its own.

Kudos to Brian--good answer.

2007-08-21 13:03:17 · answer #4 · answered by Doc B 6 · 0 0

6...c

2007-08-21 12:54:15 · answer #5 · answered by leo g 1 · 0 0

fedest.com, questions and answers