Oh honey, that's an easy one. Another name for a right angle DEF is a 90-degree angle. It's like the perfect L shape, straight up and down, no funny business. So, go ahead and call it a 90-degree angle or a right angle, whatever floats your boat.
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Ah, a right angle is like a cozy corner where two lines meet and form a perfect square. You can also call it angle DEF, which stands for the three points where the lines intersect: D, E, and F. Just imagine a little square dancing in the corner, happy and content.
Another name for a right angle DEF would be an angle measuring 90 degrees. In geometric terms, a right angle is formed when two lines or line segments meet at a 90-degree angle. In triangle DEF, the right angle would be at vertex E, where line segments DE and EF intersect perpendicularly.
FED and DEF lol
Angle "A" is congruent to Angle "D"
A triangle if not found congruent by CPCTC as CPCTC only applies to triangles proven to be congruent. If triangle ABC is congruent to triangle DEF because they have the same side lengths (SSS) then we know Angle ABC (angle B) is congruent to Angle DEF (Angle E)
in triangle def side de equals 5 and angle d equals 55 find fe
D=27 E=81 F=72