Severity: Warning
Message: fopen(/var/lib/php/sessions/ci_sessionr8l9rf3ae69lkgushk6dhknblbg4knqr): failed to open stream: No space left on device
Filename: drivers/Session_files_driver.php
Line Number: 176
Backtrace:
File: /var/www/interviewmania.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /var/www/interviewmania.com/index.php
Line: 315
Function: require_once
According to question , we draw a figure of cyclic trapezium ABCD
∠ACB = 90° (Angle of semi-circle)
∠CAB = 30°
∴ ∠CBA = 180°– 90° – 30° = 60°
Again, ∠ADC + ∠ABC = 180°
∴ ∠ADC = 180° – 60° = 120°
