right angle
Use trigonometry depending on what type of triangle it is.
If it is a right triangle, you can use the Pythagorean theorem to find the height since it will be on of the sides. If it is an equilateral triangle, you can break it up into two right triangles and use the part above. If it is an oblique triangle, you use the angles and some trigonometry to find it. Since the area is 1/2 b x h, if you are given the area, you can solve for the height.
measuring tape
feet
You will use what you know about the triangle, including the size of sides or angles of that specific triangle, plus properties of any special category of triangles of which it is a member, to calculate the unknown height.
Cubics lengh x width x height. Not easy unless it is has measurable sides with right angles
Multiple the length by the width by the height
Yards :) easy question :)
It depends on what shape. For a cube, multiply the length by the width by the height.
lxwxh length times width times height
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Engineers and architects use angles for designs, roads, buildings and sporting facilities. Without angles you wouldn't have the correct height of a ceiling or the correct angel of the roads.