Overview of Resources. The chief mineral resources produced in Cuba, which aided its economy in 2010, were nickel and cobalt. The mining sector also produced other minerals such as cement, feldspar, gypsum, iron ore, lime, limestone, asphalt, bentonite, chromite, zeolite, marble, steel, and sulfuric acid. Crude petroleum production by 10.7%.
Classification of Triangles. Triangles may be classified by. (A) their sides. (B) their angles. A scalene triangle has 3 different sides. An isosceles triangle has two equal sides and one side that is not equal. An equilateral triangle has 3 equal sides.In an acute triangle, all of the angles will measure less than 90 degrees. A right triangle will always have one 90-degree angle. An obtuse triangle will always have one angle whose measure is greater than 90 degrees but at the same time less than 180 degrees.Median and Altitude (Height). A median of a triangle is a segment drawn from a vertex of the triangle to the midpoint of the opposite side.lassification of Triangles. Triangles may be classified by. (A) their sides. (B) their angles. A scalene triangle has 3 different sides. An isosceles triangle has two equal sides and one side that is not equal. An equilateral triangle has 3 equal sides.
If the left angle measures 145 degrees, then the angle that is opposite it also measures 145 degrees. Another property of vertical angles is that angles that are next to each other are supplementary angles, meaning that they add up to 180 degrees. So, if one angle measures 35 degrees, then the angle that is directly to the left or right will measure 145 degrees, since 35 + 145 is 180. Using Vertical Angles. To use the identifying property of vertical angles, you just need to know the measurement of the angle that is opposite the angle that is missing the measurement. So, if your missing angle is the bottom angle, all you need to know is the measurement of the top angle. If the top angle measures 60, then so does the bottom angle.