An acute angle
About one and three quarters inches
A bisected 90 degree angle
Hold a ruler level, then slope the ruler to an angle of 45 degrees. The inclination of the ruler is now 45 degrees. So if rock has been altered as to be unlevel, then the angle from the level is the rock beds inclination.
The Roman numerals are XLV.
45% = 9⁄20
45 15,3 5,3,3
45%
45 15,3 5,3,3
5:45
it is a right angle triangle
45/100 (45 one-hundreth of an inch), or .45 inches.
It looks like an old Colt 45. See the link below.
It will have interior angles of 45, 45 and 90 degrees.
45 inches waist
12*45*59 cubic inches = 31,860 cubic inches
Standard is 22x15x8 inches. add them together and you get your 45 linear inch suitcase