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How do you find the perimeter of a triangle if you only know the angles and one of the lengths?
Wiki User
∙ 14y ago
The law of tangents can be used to determine another side length; the sine rule can then be used to determine the third side length.
Wiki User
∙ 14y ago
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How do you find the length of a triangle?
Find the perimeter by adding the lengths of the sides
How do you find the area of a triangle when given 3 angles and the perimeter?
If you know the lengths of 2 sides and the included angle then use: Area of a triangle = 1/2*a*b*sinC
Find the area of a triangle that has a perimeter of 21 inches?
I need to know more about the triangle, such as one or 2 of the angles, whether it is isosceles or equilateral, or whether the lengths share a certain ratio. For example, a triangle of sides 8,8 and 5 (perimeter of 21) will surely have a different area as compared to a triangle of sides 7,7 and 7 (perimeter of 21 as well)
How do you find angles in a triangle using only the lengths?
By using trigonometry
How do you find the perimeter of an obtuse triangle using the angles?
measure with an protacter
How do you find the perimeter to a triangle?
The perimeter of a triangle is the distance around it. Add the lengths of the three sides to find the perimeter.
How do you find the length of a triangle?
Find the perimeter by adding the lengths of the sides
How do you find the area of a triangle when given 3 angles and the perimeter?
If you know the lengths of 2 sides and the included angle then use: Area of a triangle = 1/2*a*b*sinC
How do you find the perimeter of a triangle with perpendicular height?
The height of a triangle alone is not enough information to find the perimeter. You need some angle measures or side lengths.
How do you find the perimeter of a triangle?
you add up the measures of the sides Perimeter=a+b+cAdd up the three sides together
What is the formula for perimeter of a right triangle when one side is missing?
Surely you know how to find the third side of a right triangle, when you know the lengths of the other two. Find it, and then add up the lengths of the three sides to get the perimeter.
How do you find angles in a triangle using only the lengths?
By using trigonometry
Find the area of a triangle that has a perimeter of 21 inches?
I need to know more about the triangle, such as one or 2 of the angles, whether it is isosceles or equilateral, or whether the lengths share a certain ratio. For example, a triangle of sides 8,8 and 5 (perimeter of 21) will surely have a different area as compared to a triangle of sides 7,7 and 7 (perimeter of 21 as well)
Can you find the area of a triangle when give the perimeter and 3 angles?
yes
How do you find the perimeter of an obtuse triangle using the angles?
measure with an protacter
How would i find the perimeter of a triangle?
You use the definition of "perimeter". In other words, you add up the lengths of the three sides.
A triangle has a perimeter of 42in the lengths of two sides of the triangle are 13in and 16in find the length of the third side?
13 in
