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In order to apply the law of cosines to find the length of the side of a triangle it is enough to know?
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How do you find the hypotenuse of a triangle when the length of the legs are 10?
That's a perfect time to recall and apply the Pythagorean Theorem:C2 = A2 + B2There is absolutely no finer way to find the length of the hypotenusewhen you know the length of the legs.
How do you find the area of a 30-60degree angle?
90
What does the HL congruence postulate apply to?
right triangle
Can trigonometry be used with right triangles only?
No, trigonometry can be used with any triangle, right angle or not. While the primary trigonometric functions are defined in relation to right triangles with hypoteneuse equal to 1, that is just a special case where the function is easier to define. Sine (theta), for instance, is opposite over hypotenuse, where the angle on the other end of adjacent is a right angle. Even if you don't have a right angle, the functions can help you find a superposition of a right triangle on any triangle, and that can help you solve many different kinds of problems. The laws of sines and cosines, for instance, apply to any triangle.
If the two legs of a right triangle are 6 and 13 units long what is the triangle's area?
39 sq. unitsThe area of any right triangle is A = 1/2 (b x h)1/2 (base) multiplied by (height)A right triangle can always be set down so that the legs are the base and the height.So if you know the length of the legs, you can apply the area formula directly.
In order to apply the law of cosines to find the measure of an interior angle what is enough to know?
The lengths of all three sides of the triangle APEX:)
How do you find the cosine of a triangle?
For the length you apply this formula, after numbering the sides a²=b²+c²-2bcCosA
A triangle has two sides of lengths 5 and 13. What value could the length of the third side be Check all that apply?
10
How do you find the hypotenuse of a triangle when the length of the legs are 10?
That's a perfect time to recall and apply the Pythagorean Theorem:C2 = A2 + B2There is absolutely no finer way to find the length of the hypotenusewhen you know the length of the legs.
A triangle has two sides of lengths 4 and 15. What value could the length of the third side be Check all that apply.?
It could be 12 because the sum of the 2 smaller sides of a triangle must be bigger than its largest side.
How do you calculate the length of the sides of a right angle triangle when angles are known?
You need to know at least one side......after that you can use the angles to apply the equations, SOH CAH TOA.
What information is needed to apply Pythagoras Theorem?
Pythagoras theorem simply tells you the length of a side of a Right Angled Triangle if the other two sides are given. You only need the length of any two sides to calculate the length of the third onePythagoras theorem:Hypotenuse2 = base2 + perpendicular2
How do you find the area of a 30-60degree angle?
90
What Two Terms Apply To A Triangle?
Three and polygon.
What does the HL congruence postulate apply to?
right triangle
If the two legs of a right triangle are 6 and 13 units long what is the triangle's area?
39 sq. unitsThe area of any right triangle is A = 1/2 (b x h)1/2 (base) multiplied by (height)A right triangle can always be set down so that the legs are the base and the height.So if you know the length of the legs, you can apply the area formula directly.
Can trigonometry be used with right triangles only?
No, trigonometry can be used with any triangle, right angle or not. While the primary trigonometric functions are defined in relation to right triangles with hypoteneuse equal to 1, that is just a special case where the function is easier to define. Sine (theta), for instance, is opposite over hypotenuse, where the angle on the other end of adjacent is a right angle. Even if you don't have a right angle, the functions can help you find a superposition of a right triangle on any triangle, and that can help you solve many different kinds of problems. The laws of sines and cosines, for instance, apply to any triangle.
