Area of equilateral triangle: 0.5*8*8*sin(60 degrees) = 27.7 square inches rounded
Perimeter of equilateral triangle: 24 units Area of equilateral triangle: 27.713 square units rounded to three decimal places
21.2 sq inches.
14.00
It is: 0.5*4*4*sin(60 degrees) = 7 square cm rounded to nearest integer
1.00
It works out as 22.335 feet rounded to three decimal places
Each side is: 16.65/3 = 5.55 cm Area is: 0.5*5.55*5.55*sin(60 degrees) = 13.34 square cm rounded
1.00
Using the sine rule in trigonometry the perimeter of the triangle works out as 382cm rounded to the nearest integer
Area = 0.5*7.52*sin(60 degrees) = 24.357 square cm rounded to 3 dp.
13.00
It is: 0.5*7.5 square*(sin 60 degrees) = 24.357 square cm rounded up to 3 d.p.