2 Answers

Sven Liebig · Answer 1 · 2018-07-30T19:13:29+0000

Answer: The required measures of angles A and B is 45°.

Step-by-step explanation: Given that the angles A and B are complementary and congruent.

We are to find the measure of angles A and B.

Let x and y represents the measures of angles A and B respectively in degrees.

According to the given information, we have

$x+y=90^\circ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)\\\\x=y~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

From equations (i) and (ii), we get

$x+x=90^\circ\\\\\Rightarrow 2x=90^\circ\\\\\Rightarrow x=(90^\circ)/(2)\\\\\Rightarrow x=45^\circ.$

Therefore, from equation (ii), we get

$x=y=45^\circ.$

Thus, the required measures of angles A and B is 45°.

Please log in or register to add a comment.