Aug 22, 2017 · Both angles are 45^@ m + n = 90 as an angle and its complement equal 90 m + 3n = 180 as an angle and its supplement equals 180 Subtracting both equations will eliminate m m + 3n -m - n= 180-90 this gives 2n = 90 and dividing both sides by 2 gives 2n/2 = 90/2 so n = 45 substituting 45 for n gives m + 45 = 90 subtracting 45 from both sides gives. m + 45 - 45 = 90 - 45 so m = 45 Both the angle ...
It has 12 interior angles; Finding Angles and Perimeter of a Regular Dodecagon. No matter the shape, a regular polygon can have its exterior angles add to no more than 360°. Think: to go around the shape, you make a complete circle: 360°. So, divide 360° by the dodecagon's twelve exterior angles. Each exterior angle is 30°. AAS (Angle-Angle-Side): If two pairs of angles of two triangles are equal in measurement, and a pair of corresponding non-included sides are equal in length, then the triangles are congruent. AAS is equivalent to an ASA condition, by the fact that if any two angles are given, so is the third angle, since their sum should be 180°.
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