Question

Help plz ill give extra points

Answer 1

Answer:

15 because when you add 30 and 45 together, you get 75. There is 90 degrees in that angle, so to get 90 degrees, you need to have 15 more degrees

Answer 2

Answer:

The measure of DAC is 15 degrees.

Step-by-step explanation:

Since there are three angles that make up this 90 degree angle. we need to find the missing angle from the other two. To do this, subtract the known angles from 90 degrees.

$90 - 35 - 40 = 15$

The measure of the missing angle is 15 degrees.

ALGEBRA METHOD:

You can also use a variable to find the missing measurement.

$45 + 30 + x = 90 \\ 75 + x = 90 \\ x = 15$

The measure of the angle, x, is equal to 15 degrees.