Answer:
473
Step-by-step explanation:
The square surface area is 121 (11x11)
For the triangles, you do 16x11, which equals 176 and then divide by 2, to get 88. Since there are 4 triangles, I did 88x4 and got 352 and then added 121 to get 473
I solved with addition elimination, and matrices elimination and received the same answer. (0,0,-3) I hope that helps.
Answer:
57.6
Step-by-step explanation:
12 x 0.80 = 9.60
9.60 x 6 = 57.6
Answer:
ABC = 60
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
ACD = B+ A
100 = 40 + B
Subtract 40 from each side
100-40 = 40+B -40
60 = B
ABC = 60
Answer:
50%
Step-by-step explanation:
