Check the picture below, those are for 2) and 6).
you'd do the others likewise, using the "inscribed angle theorem".
Answer:
5
Step-by-step explanation:
firstly, what are complementry angles.complementary angles are angles that su
m up to 90°
(12x-18)+(5x+23)=90
collecting like terms
12x+5x+23-18=90
17x-5-90=0
17x-95=0
17x=95
divide through by 17
x=5
Answer:
always
Step-by-step explanation:
A parallelogram is an example of a quadrilateral. So its sides are qual to each other