NO!!! The word 'perpendicular' means that the lines intersect at 90 degrees (right anhles).
Acting thick/dumb on purpose.
supplementary angles are angles that have a sum of 180*.another way to remember that its 180* is the two p's in the word make 8.example. 70*+110*= 180* supplementary.Complementary angles add up to 90 degrees.Supplementary angles are two angles whose sum add up to 180 degrees. Can be shown as (180 - x)
An equilateral triangle- a triangle with 3 equal sides, so the triangle would have 3 congruent angles as well.A trick to remember this: the word equal is sort of in the word equilateral.
All quadrilaterals have 4 sides hence the root word quad. If you have 4 equal sides with 4 equal angles you have your basic square.
PANT. P has 3 right angles A has 3 acute and 2 obtuse angles N has 2 acute angles T has 2 right angles
NO!!! All four angles are right-angles (90 degrees) The word 'rectangle' means -right-angled quadrilateral.
MATHEMATICS
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PANT.
ALLAY
NO!!! The word 'perpendicular' means that the lines intersect at 90 degrees (right anhles).
obtuse
I assume that the second use of the word "triangle" in the question should be angle. An obtuse triangle must have two acute angles.
The word 'Triangle' is a collective noun for different shaped triangles. They are ;- Equilateral(Acute) ; all sides are the same length , and all angles are 60 degrees. Isosceles (Can be Obtuse) ; two sides are the same length and two angles are equal. Right-angles (only Acute) ; one of the angles is a right angle(90 degrees) Scalene ; All sides are different length and all angles are different values. May be either acute of obtuse. For ALL triangles, on a plane surface, the sum of the interior angles is ALWAYS 180 degrees. NB For triangles drawn on a 3-dimensional surface, ( a sphere ; the Earth) the angles may add to 360 degrees.
An obtuse angle is anything that measures between 91-179 degrees. (because 90 degrees is a right angle and 180 is a straight angle) An acute angle is anything that is lower than 90 degrees.** TIP: I remember acute angles because it has the word cute in it and I think "Oh it's so cute." I can remember right angles because "They are always right, proper, and tall." Straight angles look like a straight line so that's easy enough to remember.