Answer:
The absolute value of -90 is 90
Step-by-step explanation:
-90 is 90 away from 0.
Answer: 90
160°
The formula below gives the measure of an interior angle of a regular polygon of n sides.
[(n - 2)180]/n
[(18 - 2)180]/18
16(10)
160
Answer: 160°
(7x+2)° = (9x–8)°
=>7x –9x = –8–2
=> –2x = –10
=> x = 10/2
=> x = 5
<ADB = (7x+2)°
= 7×5+2
= 37°
<BDC = (9x–8)°
= 9×5–8
= 45 –8
<ADC = 37° + 37°
= 74°
Try this solution (see the attachment).
