Formulas for a Triangle
perimeter- a + b + c (add all sides)
semiperimeter- a + b + c ÷ 2 (add all sides the divide by 2)
area- base • height ÷ 2 (multiply base by heighth divide by 2)
base- 2 • area ÷ height (2 by area divide by heighth)
height- 2 • area ÷ base (2 by area divide by base)
are these the correct formulas of a triangle?
pretty please help. are these corr4ect. its for my cumulative exam and i don't want to get it wrong....
All your answer is correct.
thanks.
Yes, those are the correct formulas for a triangle. Let me explain each formula for you:
1. Perimeter: The perimeter of a triangle is calculated by adding the lengths of all three sides (a, b, and c).
2. Semiperimeter: The semiperimeter is half of the sum of all three sides (a, b, and c). So you add the lengths of all three sides and then divide the result by 2.
3. Area: The area of a triangle is found by multiplying the length of the base by the height and then dividing the result by 2. The base and height should be perpendicular to each other.
4. Base: If you know the area and the height of a triangle, you can calculate the base using the formula: base = 2 * area / height.
5. Height: Similarly, if you know the area and the base of a triangle, you can calculate the height using the formula: height = 2 * area / base.
Remember to use the appropriate units (such as inches, centimeters, etc.) for the lengths, base, height, area, and perimeter according to the problem or situation you are working on.