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Use Pythagoras' theorem to find the triangle's altitude or height:
122-62 = 108 and the square root of this is 10.39230485
1/2*base*height = area
1/2*6*10.39230485 = 31.17691455 square units
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How do you find area triangle base 12cm height of 6.5 cm?
Area of a triangle = 1/2 * Base * Height = 1/2 * 12 * 6.5 = 39 cm2
What is the perimeter of an equilateral triangle with an altitude of 15?
An equilateral triangle has 3 equal interior angles each of 60 degrees. There are two right angled triangles in an equilateral triangle. So we can use trigonometry to find the length of one side of the equilateral triangle then multiply this by 3 to find its perimeter. Hypotenuse (which is one side of the equilateral) = 15/sin 60 degrees = 17.32050808 17.32050808 x 3 = 51.96152423 Perimeter = 51.96152423 units.
How do you find the surface area of an equilateral triangular prism?
To find the surface area of an equilateral triangular prism you take the area of the rectangular sides and the triangular bases and add them up and your done.
One equilateral triangle has sides 9 ft long Another equilateral triangle has 13 ft long Find the ratio of the areas of the triangle?
TriangleA a=90.6 TriangleB a=188.9 90.6/188.9 = .48 I think this is right, not completely sure though.
The altitude of an equilateral triangle is 8cm . find the side?
The length of each side is 9.2376 cm. (rounded)
If one side of an equilateral triangle is 12Cm find the Apothem?
the perimeter is 36 and the area is 144
Find The altitude of an equilateral triangle if one of its sides measures 12cm?
Altitude = 10.4 (10.3923) cm
What is the area of an equilateral triangle that has a perimeter of 71 feet?
Find the area of an equilateral triangle if its perimeter is 18 ft
Find the base of a triangle with area of 42 square centimeters and a height of 12cm?
3.5
Find the area of an equilateral triangle that has a perimeter of 21 inches Round the answer to one decimal place?
Find the area of an equilateral triangle that has a perimeter of 21 inches. Round the answer to one decimal place.
How do you find the area of each face on an equilateral triangle?
Area of an equlateral triangle = 0.5*side2*sin(60)
Find the area of a right triangle with a base of 8cm and a height of 12cm?
=48
Find the area of a triangle where the base is 10cm and height is 12cm?
60 sq cm
Find the area of an equilateral triangle with side 12?
62.354 units squared.
Find the area of an equilateral triangle that has a perimeter of 21 inches. round the answer to one decimal?
Area of equilateral triangle: 0.5*7*7*sin(60 degrees) = 21.2 square inches
How do you find area triangle base 12cm height of 6.5 cm?
Area of a triangle = 1/2 * Base * Height = 1/2 * 12 * 6.5 = 39 cm2
What is the formula to find the area to an equilateral triangle?
Base times height and divided by 2.
