In Figure 5.51 given to the right, m( <ABC) = 32°, m(<BHE) = 42° and m( <ADE) = 48°
Find m(<NAD).​

122

Step-by-step explanation:

<HEB=180-(42+32)

=180-74

=106

<DEA=180-106 (straight line)

=74

<NAD=48+74(exterior angle = sum of 2 interior opposite angles)

<NAD=122

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.