1 + 1/1 or 9/9
Or if you have to make the 1 to a 2 then 1/.5
Complementary angles have a sum of 90°
Supplementary angles have a sum of 180°
So
∠b=90-a=90-38=52°
∠c=180-b=180-52=128°
Answer:
Angle B=92
Arc DCB=228
Step-by-step explanation:
Arc DCB intercepts Angle A.
Arc DCB is twice of Angle A so that means Arc dCB=228
Angle C is supplementary so Angle B equal 92.
Here is a trick that not a lot of people know
(# of terms)*(first+last)/2
(in case you don't know, * means multiply and / means divide)
