Q: How do l work out the area of a triangle?

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0.5 x base length x vertical height

Area of the triangle: 0.5*16*14 = 112 square inches

Turn the triangle into a square work out the area for that then half your answer ---- For an equilateral triangle, use the formula 1/2 x base x perpendicular height to work out the area.

If the legs have length L, then 1/2*L*L = 32 so that L = 8 cm. And the hypotenuse is 8*sqrt(2) = 11.31 cm.

The altitude of an equilateral triangle bisects the base. So, if the sides of the triangle were l cm, the altitude forms a right angled triangle with sides h, l/2 and hypotenuse l cm. Then, by Pythagoras, h2 = 3l2 / 4 so that h = l*sqrt(3)/2 and then area = l*h/2 = l*[l*sqrt(3)/2]/2 =l2*sqrt(3)/4

Related questions

add up the length of all the sides

0.5 x base length x vertical height

L × b ( length × breadth )

Area of the triangle: 0.5*16*14 = 112 square inches

Turn the triangle into a square work out the area for that then half your answer ---- For an equilateral triangle, use the formula 1/2 x base x perpendicular height to work out the area.

The area of a right triangle that has legs 7 cm and 4 cm long can be calculated using the fact that a right triangle is half of a rectangle. The area of a rectangle is l*h, so the area of a right triangle is l*h/2. In this case, the area is 14 cm^2.

Area of Equilateral Triangle = (Sqrt(3) / 4) * l². So if the length of the triangle is 3, it would be Area = (Sqrt(3) / 4) * l² = (1.73 / 4) * 3² = 0.43 * 9 = 3.87.

If the legs have length L, then 1/2*L*L = 32 so that L = 8 cm. And the hypotenuse is 8*sqrt(2) = 11.31 cm.

The altitude of an equilateral triangle bisects the base. So, if the sides of the triangle were l cm, the altitude forms a right angled triangle with sides h, l/2 and hypotenuse l cm. Then, by Pythagoras, h2 = 3l2 / 4 so that h = l*sqrt(3)/2 and then area = l*h/2 = l*[l*sqrt(3)/2]/2 =l2*sqrt(3)/4

Area of a triangle is A=1/2*apothem*Permiter orA=1/2*B*HSquare is A=L*W

The area of any triangle has the same formula, which is base times height, divided by 2. A scalene triangle is a triangle with three sides of unequal length, which is not important when calculating the area.

you just have to measure it in inches all the sidesAnother Answer:-Area of a triangle = 0.5*base*height