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What is the area and perimeter of a triangle 19cm x 21 cm?
To find the area of a triangle, you need the length of the base and the height. If the triangle has a base of 19 cm and a height of 21 cm, the area would be (1/2) * base * height = (1/2) * 19 cm * 21 cm = 199.5 cm^2. To find the perimeter of a triangle, you need to add the lengths of all three sides. Without knowing the lengths of the other sides, the perimeter cannot be determined.
How can you find the perimeter of isosceles triangle?
The answer depends on what information you have but, basically, you need to add together the lengths of the three sides of the triangle.
Perimeter of acute triangle?
There is no rule for the perimeter of an acute triangle. You simply need to add the sides.
What is the perimeter of rectangle 3mx6m on the bottom of a triangle?
The perimeter is the sum of all four sides, so you need to calculate 2 x length + 2 x height. The fact that the rectangle is at the bottom of a triangle is irrelevant - except that in specific diagrams, information may be provided that lets you calculate the length or the width of the triangle.
How do find area of triangle?
1/2bh b=base h=height To find the are of a triangle,you have to multiply the base times height and divide the answer by 2. To find the area of a triangle you need to multiply all the sides of the triangle and then divide by 2.
