Question

A swinging door opens to form a 90°angle. If the door is swung 36° closed, how many more degrees can the door close?​

Answer 1

The swinging door starts at a 90° angle, which means it is fully open.

If the door is swung 36° closed, we need to calculate how many more degrees it can close.

To do this, subtract the angle the door is swung closed (36°) from the initial 90° angle:

90° - 36° = 54°

Therefore, the door can close an additional 54 degrees.

Explanation:

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Answer 2

54°

Explanation:

If a swinging door opens to form a 90° angle and is then swung 36° closed, we can find out how many more degrees the door can close by subtracting the angle it has already closed from the total angle it can open to.

• Total angle the door can open to = 90°
• Angle the door has already closed = 36°

To find out how many more degrees the door can close, subtract the angle already closed from the total angle it can open to:

`\sf 90^\circ - 36^\circ= 54^\circ`

So, the door can close 54 degrees more.