When you require that degree of accuracy in the answer: no more and no less.
Pi to 5 decimal places is about 3.14159
Using Pythagoras' theorem its height works out as 17.321 inches rounded to 3 decimal places
3.14
Area of the equilateral triangle: 0.5*10*10*sin(60 degrees) = 25 times square root of 3 which is about 43.301 square inches to 3 decimal places. If it is an equilateral triangle with 3 equal sides of 10 inches then its height would be about 8.66 inches and not 7 inches
Divide the base in half and draw the median from the apex. This median is also the altitude and so its length is the required height. Also, since it is the altitude, it forms a right angled triangle. Using Pythagoras on this triangle, the height is 9*sqrt(3)/2.
Pi to 5 decimal places is about 3.14159
Using Pythagoras' theorem its height works out as 17.321 inches rounded to 3 decimal places
3.14159
3.14
If: (-2, 9) and (-7, -3) is the same distance then the height of the triangle is 13 units and each length of the equilateral triangle is 15.011107 units. Area = 0.5*13*15.011107 = 97.572 square units to 3 decimal places
1.732 (rounded to 3 decimal places)
1/15 as a decimal is a recurring decimal: 0.066... with the 6 recurring forever; it would be usual to approximate the decimal by rounding to a number of decimal places, eg to 5 decimal places it is approx 0.06667
To approximate 7.0826 to 3 decimal places, we look at the digit in the 4th decimal place, which is 2. Since this digit is less than 5, we simply truncate the number at the 3rd decimal place. Therefore, 7.0826 approximated to 3 decimal places is 7.083.
The approximate value of pi up to the fifth decimal place is 3.14159
Area of the equilateral triangle: 0.5*10*10*sin(60 degrees) = 25 Times Square root of 3 which is about 43.301 square inches to 3 decimal places. If it is an equilateral triangle with 3 equal sides of 10 inches then its height would be about 8.66 inches and not 7 inches
Area of the equilateral triangle: 0.5*10*10*sin(60 degrees) = 25 times square root of 3 which is about 43.301 square inches to 3 decimal places. If it is an equilateral triangle with 3 equal sides of 10 inches then its height would be about 8.66 inches and not 7 inches
Using the sine formulae of a/A=b/B=c/C and A/a=B/b=C/c in trigonometry the perimeter of the triangle is 31.08 cm with a height of 2.76 cm both rounded to two decimal places.