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.
Steps. 1  1. Draw square lines. Use the speed square to mark lines on wood at exactly 90 degrees to the wood's edge. 2  2. Align pieces of wood at a right angle. When building cabinets, boxes, or other furniture pieces, hold the speed square against the wood to measure angles before cutting or attaching pieces of wood. 3  3. Make a 45 degree line. Put the square firmly against the board and mark the location of the diagonal edge to create a 45 degree line. As an isosceles triangle, the square's diagonal edge is exactly at 45 degrees angle. 4. Read and mark angles. Look for the pivot point at the corner of the speed square. Each line along the diagonal edge represents 1 degree, and they go from 0 to 90. Hold the pivot point against the board, and adjust the square until the degree gradation needed is aligned with the edge of the board. Use a pencil to draw a line along the square.