Solving a MISSING ANGLE In An ISOSCELES TRIANGLE!

This short video will show you how to solve the base angles in an Isosceles triangle! #shorts #maths #education

[TifaS.F]

EXAMPLE:

/\ <— The top angle is 26°.
/ \
/____\ <— While the 2 bottom angle is still unknown.

So how do we search for the other angle's?

First we are going to do a little bit of algebra: 2X + 26° = 180°.

2X came from the X + X + 26° = 180°.

And then we will do the subtract:
2X + 26° - 26° = 180° - 26°.

We will left with: 2X = 154°.
Now we will divide each side with 2:
2X ÷ 2 = 154° ÷ 2
X = 77°

We have found the answer! Now we will plug it into the 2X:
2(77°) + 26° = 180°
154° + 26° = 180°

/\ <— 26°
/ \
77° —> /____\ <— 77°

I hope for those who still confused can understand!

[captainvedansh]

GUYS SO BASICALLY FOR EVERYONE WHO IS CONFUSED,

in an isosceles triangle, 2 of the sides, and 2 of the angles are equal. AND, if you add all 3 sides of a triangle, you get 180, this guy said the angles at the bases are same. we can take the angle as X, and since there are 2 angles at the base, we make it X+X = 2X

so according to what i said above, an equation gets formed

2X + 26 = 180 (2 of the unknown angles at the base + 3rd angle = 180) (180 as all 3 angles added = 180)

then you bring 26 to the other side and change the sign so it becomes 2X = 180-26 then 2X = 154 so X = 77

[felixcabugnason]

Easy you know that there's 6 triangles acute triangle, right triangle, obtuse triangle, scalene triangle, isosceles triangle and equilateral triangle

[rexsk]

oh ez you take 2x and divide two so 180 - 26. 77

[HK]

Okay easy way :
180-26=154
154 divided by 2
=77 easy

[DUTCH-CHRISTIAN]

I don’t need math to prove its a triangle

[kuldeepsinghredhu]

But it's wrong my class teacher told me that this is totally wrong 😢😢😢😢😢😢