Area = 0.555*sin(60) = 10.825 square m to 3 decimal places
Well, well, well, look who's trying to flex their math muscles. If the perimeter of an equilateral triangle is 15m, that means all three sides are equal. So, divide 15m by 3 and voila, you get the length of each side - 5m. Math really can be a piece of cake, huh?
12.5m2
A right triangle with a hypotenuse of 10m and a base of 5m has an area of: 21.65m2
20 sq. m
Area of a triangle = b*h/2 = 5m*7m/2 = 35m2/2
Well, well, well, look who's trying to flex their math muscles. If the perimeter of an equilateral triangle is 15m, that means all three sides are equal. So, divide 15m by 3 and voila, you get the length of each side - 5m. Math really can be a piece of cake, huh?
12.5m2
A right triangle with a hypotenuse of 10m and a base of 5m has an area of: 21.65m2
20 sq. m
Area of a triangle = b*h/2 = 5m*7m/2 = 35m2/2
It will have an area = 0.5*5*2.5 = 6.25 square m
The perimeter of a triangle is the sum of its three sides. If two are 3m and 2m then their sum is 3m + 2m = 5m And the remaining side can be calculated by taking this sum from the perimeter → the other side is 9m - 5m = 4m long.
To determine if the side lengths of 4m, 5m, and 7m can form a right triangle, we can use the Pythagorean theorem, which states that in a right triangle, the square of the longest side (hypotenuse) equals the sum of the squares of the other two sides. Here, 7m is the longest side. Calculating, (4^2 + 5^2 = 16 + 25 = 41) and (7^2 = 49). Since (41 \neq 49), these side lengths cannot form a right triangle.
For a triangle, the formula for the area is: A = (BH)/2 7*5/2 = 35/2 = 17.5 17.5 m (If anyone else knows what a "sub" of a triangle is, please edit!)
A = 1/2bh 1/2 * 5 * 7 = 17.5m2
5m*8m = 40m/2=20 20 is your answer
Subtract the two side lengths from the perimeter. The perimeter of a triangle is just the length of the 3 sides added together. Eg. Q: A triangle has a perimeter of 20 m. One side is 5m and another is 10m. How long is the 3rd side? A: Perimeter - side 1 - side 2 = side 3 Side 3 = 20 - 5 - 10 = 5 m