emilychristinap99024 emilychristinap99024
  • 03-07-2018
  • Mathematics
contestada

A sail is in the form of a right triangle. The angle at its lower edge is 57. Which is the size of the angle formed at the top of the sail?

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Аноним Аноним
  • 03-07-2018
Hello!

All of the interior angles of a triangle add up to 180°. Since we have a right triangle one of the angles is 90°. The other we have is 57°. Now we add up our angles and subtract from 180 to find the missing angle.

180-147=33°.

The angle is 33°.

I hope this helps!
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DeanR
DeanR DeanR
  • 03-07-2018

The non-right angles in a right triangle are complementary, adding to 90 degrees.  So the other angle is

90 deg - 57 deg = 33 degrees

Answer: 33 degrees


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