Find the base of a triangle by solving the equation: area = 1/2 x b x h. You need to know the area and height to solve this equation.
Put the area before the equals sign, and replace the letter h with the height. For example, if the area is 15 centimeters, and the height is 10 centimeters, the equation would look like this: 15 = 1/2 x b x 10.
Calculate 1/2 x h/1 to get h/2. For example, 1/2 x 10/1 equals 10/2, which equals 5. Now the equation looks like this: 15 = 5b.
To isolate b, divide the entire equation by the number on the same side of the equation as b. For example, 15 = 5b becomes 15/5 = 5b/5. Five divided by 5 equals 1, so b is now alone on one side of the equation, which now reads 15/5 = b.
Divide the numbers on the other side of the equation to solve for b. For example, 15 divided by 5 is 3, so 3 = b. The base of the triangle measures 3 centimeters.
The surface area of a right square pyramid is determined by adding the square of the length of the base to four times the quotient of the base length times the height divided by two. The formula is written as SA=b^2 + 4(bh/2) where SA is the surface area, b is the base length of the square and h is the height of the pyramid to the apex.
Full Answer >A perpendicular bisector is a line that divide another line into two equal measures and is perpendicular to the line it dissects. A triangle has three perpendicular bisectors, one for each side. To find the perpendicular bisector, which is not immediately visible, you need to measure a side to find the point that divides it into equal halves, and then draw a line that passes through that point and creates a right angle with the side.
Full Answer >You can locate the orthocenter of a triangle by drawing the altitudes of each of the triangle's sides and pinpointing the point at which all three lines intersect. The triangle must be an acute triangle for it to have its orthocenter inside the triangle.
Full Answer >To find the perimeter of a triangle, use the equation P=A+B+C, where P is the perimeter and A, B and C are the lengths of each of the three sides of a triangle. The perimeter of a triangle is the distance around all three sides.
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