Apr 7, 2014 · 2 Think about similar triangles. Two similar triangles have exactly the same angles, but the sides are (generally) not the same length. That fact alone tells you that it is not …

7 I bet this question has been asked a million times, but I can't find a straight answer. I need to find the length of the hypotenuse in a triangle where I have one side and all the angles. …

11 How do I prove that a triangle with sides a, b, c, has an angle bisector (bisecting angle A) is of length: $$\frac {2 \sqrt {bcs (s-a)}} {b+c}$$ I have tried using the sine and cosine rule but have …

Dec 28, 2014 · I need to find the inradius of a triangle with side lengths of $20$, $26$, and $24$. I know the semiperimeter is $35$, but how do I find the area without knowing the height? Thank …

Aug 23, 2015 · In the case of a general isosceles triangle, the angle bisector between the two equal sides is also an altitude/perpendicular to the third side. Thus this would divide the …

Jan 27, 2015 · 0 I would like to calculate the length of the side in red on the image. I tried the Law of cosines, but maybe i haven't applied the formula right, because for a side "a" and "b" of size …

Nov 7, 2018 · Don’t calculate, cut the triangle along the height instead to get two triangles with sides $8-17-15$. Now glue them together at their common sides of length $8$ to get the …

Bisect the angle to get 2 right triangles with known hypotenuse and angles, then use $\sin$ to get the sides opposite the $22.5/2$ degree angles. Or, use the triangle that's already there, having …

Jul 24, 2015 · If I am reading correctly, your triangle has side length 2 whereas the OP wanted 16. Of course everything scales without difficulty.

Jun 5, 2013 · 4 You are correct that it is impossible. Given only the base length of an isosceles triangle, we cannot determine the length of its sides: one would need to have the measure of …