In isosceles triangle △abc, ac is the base and ad is the angle bisector of ∠a. what are the measures of the angles of this triangle if m∠adb = 110°?

Isosceles triangle:

* two sides are equal.

* the base angle are always equal and

* the altitude is a perpendicular distance from the vertex to the base.

Since, the triangle ABC is an isosceles and AC is the base

⇒ AB=BC and  

Also, AD is the angle bisector of , which implies that it cuts the angle at A in two equal halves,

let , then the bisectors cuts it in .

As per the given information, we know  is 110°, therefore, the line BDC forms a supplementary angle;

⇒

As shown in picture given below:

By sum of all interior angles in a triangle is 180 degree, thus

or

Simplify:

Therefore, the .

Now, to find the angle B, we have;

   [Sum of the measure of the angles in a triangle is 180 degree]

or

 or

Simplify:

.

answer is 67%

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)