Answer:
The seccond one B
Step-by-step explanation:
I believe midpoint would be always. If someone else answers can I have brainliest? It will give you points back
The LCM of 12,16, and 20 would be 240
Answer:
Part 1) 
Part 2) 
Part 3) 
Step-by-step explanation:
step 1
Find the measure of angle C
we know that
The sum of the interior angles in any triangle must be equal to 180 degrees

substitute the given values




step 2
Find the measure of side a
Applying the law of sines

substitute the given values

solve for a


step 3
Find the measure of side b
Applying the law of sines

substitute the given values

solve for b


The triangle ABC is an isosceles triangle
Answer:
AB = 15
Step-by-step explanation:
Since AD and DC are congruent point D lies on the axis of AC
the axis of a segment divides it in two congruent segments, so AB congruent to BC
5x = 4x + 3
x = 3
AB = 5 * 3 = 15