Find the nth term of this number sequence 2,4,6,8

2n

Step-by-step explanation:

The difference is 2.

4 - 2 = 2

6 - 4 = 2

The first term is 2.

Use the nth term formula

an = dn + (a - d)

Where a is the first term, d is the difference.

an = 2n + (2 - 2)

an = 2n + 0

an = 2n

The nth term is 2n.

The measure of ∠ADB will be 105°

Explanation

According to the below diagram, the angle bisectors of ∠A and ∠B are intersecting at point D.

Given that, the measures of ° and °

So, ° and °

Now in triangle ADB, the sum of all three angles is 180°

So,  

Thus, the measure of ∠ADB will be 105°