Answer:
Hi,
Explanation:
Q13: answer D : 5.6
sin(22°)=x/15 => x= sin(22°)*15=5.619098... => 5.6
Q1: Answer A
Opposed angles in a parallelogram are equal:
10x-30=6x+6 => 4x=36 => x=9
10x-30=10*9-30=60°
Consecutive angles are supplementary : angle c= 180-60=120°
Q2: D=(4,7) Answer C