Answer:
24cm²
Step-by-step explanation:
If its a cube all of the sides are the same length, therfeore the lenght and width would be the same as well. So the surface area would be 24(6 sides, 2x2 each).
Z° + 43° = 180°-------(linear angles)
z° = 180 - 43°
z = 137°
Hope this helps.
Y-9 + y/2 = 180
Add nine to each side
y+y/2=189
Multiply each side by two
2y+y=378
Add the y's together
3y=378
Divide it all by three
y=126
so, Angle B is 126 degrees
I hope that helps!
Step-by-step explanation:
The sum of three angle of any triangle is <u>1</u><u>8</u><u>0</u><u>°</u>....
