Question

4.1 angle relationships
mallory cameron
math antics - angle basics
review
if the measure of angle a is 15 degrees, what is the measure of angle b?
multiple - choice question
15 degrees
90 degrees
75 degrees

Explanation:

Step1: Identify angle relationship

Angle A and Angle B are complementary (form a right - angle).

Step2: Use complementary angle formula

The sum of complementary angles is 90 degrees. Let the measure of Angle B be $x$. We have $A + x=90$. Given $A = 15$ degrees.

Step3: Solve for Angle B

$x=90 - A$. Substitute $A = 15$ into the equation: $x=90 - 15=75$ degrees.

Answer:

75 degrees