Answer:
As you may know, the addition of all the interior angles of a triangle always adds up to 180°.
So if we know two angles of the triangle, A1, and A2, we can find the third angle as:
A1 + A2 + X = 180°
X = 180° - A1 - A2.
Se with only knowing two angles, we can find the third angle.
So aaa is a criteria equivalent to aa.
Now, the problem with this criteria is that also works for finding similar triangles (for example, an equilateral triangle of sides 10 and an equilateral triangle of sides 20 are similar, as the angles are the same, but are not congruent, as the length of the sides is different) and this happens because we only have information of the angles and know nothing of the sides.
Answer:
35.5 i'm pretty sure
Step-by-step explanation:
because 9 times 7 is 63. 63 plus 8 is 71 and 71/2 is 35.5
Two advanced for my simple mindedness
Answer:
9√2 (Decimal: 12.727922)
Step-by-step explanation:
Answer:
The value of x is 
Step-by-step explanation:
we know that
An equilateral triangle has three equal sides and three equal internal angles (each internal angle measure 60 degrees)
In this problem
see the attached figure to better understand the problem
In the right triangle ABD
Solve for AB
we have
substitute
