The measures of the angles of a triangle are in a ratio 2/3 / 5 . What are the measures of the angles?

36°, 54°, 90°

Step-by-step explanation:

2:3:5 equal 10 parts in total

there are a total of 180 degrees in a triangle

180°/10 = 18°

2(18°) = 36°

3(18°) = 54°

5(18°) = 90°

the answer is: 5,953.2 mm²

you have the  8-sided octahedron as a composite figure that has 2 square pyramids. so, you should   apply the formula for the calculated area of a square pyramid as so:   a=s²+2sl

  a is the area of the square pyramid.

  s will be the base of the square pyramid (s = 33 mm).

  l is the slant height of the square pyramid (l = 28.6 mm).

then, when you substitute these values into the formula you get:

  a=s²+2sl

  a=(33 mm)²+2(33 mm)(28.6 mm)

  a=1089 mm²+1887.6 mm²

  a=2,976.6 mm²

thus, the area of the  surface area of the octahedron is:

sa = 2a

sa = 2(2,976.6 mm²)

sa = 5,953.2 mm²

thus the answer will be: 5,953.2 mm²