B*H (base*height) divided by 2
Q. base=4 height=5 What the area of this triangle?
A. 4*5=20 20 divided by 2=10
the reason the formula is B*H divided by 2 is cus a triangle put next to another triangle is a square and a squares formula is B*H so sence a triangle is half a square that just means you have to do the same formula but just cut it in half. find a right angle on the triangle and figure out the height and base of the right angle then multiply then divide by 2.
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A=1/2*b*h orA=b*h/2
Example 1:Find the area of an acute triangle with a base of 15 inches and a height of 4 inches.Solution:A=1/2*b*hA =1/2*(15 in) * (4 in)A =1/2* (60 in2)
=30 in2
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A cube is a symmetrical 3-dimensional shape contained by six equal squares. The formula for finding its area is: A = 6a^2 , where a is the length of the side of each edge of the cube.
Ask Travis Larson he's crazy smart at stuff like that.
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Actually, the answer will depend on what you already know about the triangle (or can deduce).
There is not really a formula for a cuboid. Cuboids are solid figures with 6 faces. There are formulas for area and volume of a cuboid.