To work this out, we must use the balancing method - whatever we do to one side, we do exactly the same to the other
-7 = e/3 + 14
(-14) (-14)
-7 - 14 = -21
-21 = e/3
(x3) (x3)
-21 x 3 = -63
-63 = e
e = -63
Answer:
m∠ABC = 42°
Step-by-step explanation:
5x + 13 + 3x + 33 = 70
8x + 46 = 70
8x = 24
x = 3
m∠ABC = 3(3) + 33 = 42
The answer is the first and the third figure,attached
Answer: In a rhombus, the opposite angles are congruent, and the adjacent angles are supplementary.
So, no matter how the figure is labeled, it is not a rhombus.
The sum of the interior angles of a quadrilateral is 360°.
