find the area of a parallelogram with vertices at A(-9, 5), B(-8, 10), C(0, 10), and D(-1,5)
A. 30 square units
B. 40 Square units
C. 20 Square units
D. none of these

Please help! it's my last question and I'm majorly confused!

Question

find the area of a parallelogram with vertices at A(-9, 5), B(-8, 10), C(0, 10), and D(-1,5) 
A. 30 square units
B. 40 Square units
C. 20 Square units
D. none of these

Please help! it's my last question and I'm majorly confused!

amistre64 · Answer

id move it so that ... A is at the origin

amistre64 · Answer

A(-9, 5), B(-8, 10), C(0, 10), and D(-1,5) 
   +9 -5      +9  -5   +9  -5           +9 -5
-------------------------------------
    0 0           1 5         9 5               8 0



      1 5                9 5

0 0              8 0

whats the base and height from this?

anonymous · Answer

attachment