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 line from the poem The Lake of the Dismal Swamp by Thomas Moore is the best example of Alliteration?

The average alcohol-related fatality in Florida costs the public more than $__________ million

Which of the following men was the first Chief Justice of the U.S. Supreme Court? a. John Jay b. John Marshall c. John Adams d. John Quincy Adams

1. You fall down and scrape your hand – describe what each component of blood would be doing at the injury site.

the molar mass of Ba(OH)2

The lab requires each student to use 4 fluid ounces of lake water . If 68 students are participating , how many pints of lake water will the teacher need to col

Do you think making a table is the best way to find the total area of the rooms given in the example?

what is the constant proportionality for y=7.25x

When is it helpful to round the quotient to the nearest hundredth

give an example of a trait that is controlled by more then one gene