You take the x and change it to the other side to leave y by itself and then divide by 2 = Y=-3-x
54 - 18n
Multiply -9 by -6 to get 54.
Multiply -9 by 2n to get 18n.
There could be five in each class.
(a) the given triangle is a isosceles triangle, therefore the two leg sides will be congruent, as well as the two base angles. It is given that one of the base angles ∠XYW is 70°, therefore, due to the law of a isosceles triangle, the measurement of ∠XWY is also 70°. Remember, a triangle's interior angles add up to 180°, so:
180 - (70 + 70) = 180 - 140 = 40
40° is your answer.
m∠X = 40°
(b) All sides are congruent, making it a equilateral triangle. If it is a equilateral triangle, then all the angles also have the same measurement. The total of the interior angle's measurement is 180°. Divide by the amount of angles, 3:
180/3 = 60
60° is your answer.
m∠V = 60°
~
Answer:
211 × 9 is 1899 so rounding to nearest thousands would be 2000
