∠1 = x
∠2 = 2x
∠3 = 3 * 2x = 6x
x + 2x + 6x = 180
9x = 180
x = 180/9
x = 20° ← <span>the first angle
</span>the second angle = 2 * 20 = 40°
<span>the third angle = 3 * 40 = 120</span>°
ANSWER

EXPLANATION
The room represents a rectangular prism or a cuboid.
The dimensions of the room are 30 feet by 16 feet by 8 feet(height).
The volume of a rectangular prism is

Substitute the given values

Simplify:

Hence the cubic feet of air in the room is 3,840ft³.
Answer:
(1, -3)
Step-by-step explanation:
The answer.
14kg 450gram - 20kg = 5kg 550gram
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Step-by-step explanation:
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