For perimeter you add up the two sides so 15 + 21 equals 36
Do you know how many degrees an angle is?
Answer:
Prism
B- A triangle cannot be "two polygons"
C- A cube also cannot be "two polygons"
D- A pyramid is not parallel.
Step-by-step explanation:
the following things are clear : opposite sides are of equal length, the sum of all angles in a square, rectangle or general parallelogram is 360 degrees, and opposite angles are equal.
so,
y² + 7 = 32
y² = 25
y = 5
2y² = k
2×5² = k
50 = k
the opposite angle of 150 is also 150 degrees.
the opposite angle of x is also x.
so, we have as sum of angles
360 = 150 + 150 + x + x = 300 + 2x
60 = 2x
x = 30 degrees
Answer:
y = 12
Step-by-step explanation:
60° = 5y°
y = 60°/5
y = 12
