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

explain what would happen if the vacuole was destroyed

true or false : the scientific method can ultimately explain any concept

How did glacial movement affect the Nordic countries? Select all that apply. A. caused the formation of fjords B. caused the North Atlantic Current C.

Counting significant digits when measurements are multiplied or divided calculator

Which event occurred in 1963 and caused the country to experience a major transition?

the sum of 12 and a number x is equal to 16

One can determine the consumers’ surplus if the _______________ are known tax paid maximum buying price price paid maximum buying price and price paid maximum b

Fill in the blank with the correct direct object pronoun, based on the word in parentheses, that best complete this sentence: Tú _______ traes. (vasos) When e

How do you find the area of a triangle

In which quadrant does the point (–10, 9) lie? Quadrant I Quadrant II Quadrant III Quadrant IV