lrnegrita8 lrnegrita8

02-05-2018
Mathematics

contestada

Help Geometry!!
AC is tangent to circle O at A. If , m<BY= 24 , what is m<YAC?

a) 48

b) 156

c) 78

d) 132

Help Geometry AC is tangent to circle O at A If mltBY 24 what is mltYAC a 48 b 156 c 78 d 132 class=

Respuesta :

calculista calculista

12-05-2018

we know that
The inscribed angle measures half of the arc it comprises.
so
∡BAY=BY/2------> 24/2------> 12°

angles YAC and BAY are complementary angles
∡YAC+∡BAY=90°
∡YAC=90-∡BAY-------> ∡YAC=90-12-----> 78°

the answer is
78°

Answer Link

Otras preguntas

Which of the following was a prominent Federalist

How was the question of slave labor in America primarily seen in the 1850s? as a moral question as a question of property rights as an economic question as ille

If n=2, and l=0, then what are the possible values of ml?

Which three major factors contributed to the Roman Empire’s decline? political insurrections, military rebellions, famine political instability, military confli

if i get paid 7.25 and i get 30 hours how much is my check

Napoleon's Continental System was designed to __________. reform the French judicial system strengthen France's commercial connections with the United States pr

What do tobacco, cotton, and rice have in common? They were all cash crops. They were all subsistence crops. They were all grown on small farms. They were all g

if a= lw and if l= 1.5 and w = 0.75 what does a equal

what fraction of a pound is 25 pence

Who changed the numerical strength of the Supreme Court? Herbert Hoover Abraham Lincoln Thomas Jefferson FD Roosevelt