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Corresponding angles must be equal; in this case, that would be angle f. To prove that the two triangles are equal, you would have to prove that at least another pair of angles is also equal, for example, angle b equal to angle d. Or prove some other facts, like the ratio between certain corresponding sides.
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What conclusion can you make about the angle in a right triangle?
Since the sum of the measures of the angles in a triangle is 180°, and a right angle has a measure of 90°, it follows that the other two angles together have a measure of 90°.
What can you use to measure angles other than a protractor?
A ruler. Add a line to make the angle into a triangle, measure the sides and use trigonometry.
Why is it possible to make an issocles triangle from to right angled triangles?
Because 1 angle will measure 90 degrees and the other 2 angles will each measure 45 degrees
Can you make a triangle with 1 obtuse angle 1 acute angle and 1 right angle?
No.
What is the measure of the third angle of a triangle if the other two angle measures are 60 degrees?
The three internal angles of a triangle always add up to 180 degrees.Two angles of 60 degrees make 120 degrees, leaving a further 60 degrees.
