Adjacent sides of a parallelogram are not congruent.
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Quadrilateral</h3>
A quadrilateral is a polygon with four sides and and four angles. A parallelogram has opposite sides parallel and equal. Two consecutive angles of a parallelogram are supplementary. Opposite angles and diagonals are congruent. The diagonals bisect each other.
(2x + 7) + (3x - 2) = 180 (consecutive angles)
x = 35°
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Answer:
x = 71
Step-by-step explanation:
The sum of the angles in a triangle is 180
x +82+27 =180
Combine like terms
x +109 = 180
Subtract 109 from each side
x+109-109 = 180-109
x = 71
Answer:
6x + 3y
Step-by-step explanation:
3(2x + y)
6x + 3y
Bet of Luck!
On the right side, there are
• 2•2 = 4 atoms of Nb
• 2•5 = 10 atoms of O
so among the reactants on the left, the reaction is balanced as
4 Nb + 5 O₂ → 2 Nb₂O₅
