What is the perimeter of rectangle JKUM? 32 units 44 units 56 units
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we can divide the composite shape into on quadrilateral and triangle as shown in the diagram. since the line that joins the two shape is parallel to the base AB, the angle DEC is 85°.The angle CEA is 180°- angle DEC = 180-85=95. Angle BCE is sum of angle CEA, ABC and EAB subtracted from360°= 360°-(95+95+85)=85°. Angle DCE is 120°- ECB=35°. So, angle CDE = 180°-(35°+85°)= 60°. For reference see the diagram.
Answer:
Step-by-step explanation:
Given:
Theta lie in first quadrant.
Multiply both sides by 2
2theta lie in I and II quadrant.
is positive in I and negative in II quadrant.
Hence, The value of