It depends on what measure is missing.
An acute triangle
12
the area referrers to the length and circumference of the triangle it self. The measurement matters to find the acute angle it self as a angle not a triangle
3 names of where you would find an acute angle is: Triangle, cone and a star.
It depends on what measure is missing.
An acute triangle
Measure two of them. Then the third is 180 degrees minus the two that you know. Or measure the lengths of the sides and use the cosine rule.
12
the area referrers to the length and circumference of the triangle it self. The measurement matters to find the acute angle it self as a angle not a triangle
3 names of where you would find an acute angle is: Triangle, cone and a star.
It depends on what your measuring and the measure of the other given angles. "X" is also known as the missing angle. ex. In triangle ABC, the measure of angle A is 40 and the measure of angle B is 80 find the missing angle. answer- Angle C would be 60 because a triangle's angles add up to 180 degrees.
Using trigonometry: tangent = opposite/adjacent
Since a right triangle has 180 degree angles in it, you know 2 angles already. One is the 90 degree angle, since the triangle is a right one. The other is 40 degrees, as in your statement. 90 plus 40 is 130. 50 degrees is the missing angle since 50 + 40+ 90 equal 180 degrees. Hopefully that helped you.
It depends on what is known about the triangle.
The third side can be of any length in the interval (2, 128) units of length.
To find the missing length of a triangle