What is the area of a triangle whose vertices are R(-4,2),S(1,2), and T(-5,-4)
1 answer:
Answer:
The answer to your question is 30 u²
Step-by-step explanation:
Vertices
R(-4, 2)
S (1, 2)
T (-5, -4)
Find the area using matrices X Y
R -4 2
S 1 2
T -5 -4
R -4 2
=| (-4 x 2) + (1 x -4) + (-5 x 2) - [(-4 x -4) + (-5 x 2) + (1 x 2)]|
= |-8 - 4 - 10 - [ 16 - 10 + 2]|
= |-22 - [ 8]|
= |-22 - 8|
= |-30|
= |-30|
Area = 30 u²
You might be interested in
The slope is 5/2. You can find the slope by using y2-y1/x2-x1. 7-2/6-4= 5/2.
Answer:
4
Step-by-step explanation:
WKKSKSK
BEACUSE
2+2=4
bOom
Answer: 16.5 hours
Step-by-step explanation:
distance=rate*time
132=8*x
Divide by 8 on both sides
x=16.5
Answer:
Step-by-step explanation:
315
Answer:
32
Step-by-step explanation:
(4x6)/2+(2x2)/2+2x2+(2x6)/2