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

what is the mode for the data set 49,47,46,40,48,41,44,49,45,42,43

What's the owners real name of Carlo's Bakery?

What are the expenses a firm must pay before it can begin to produce and sell goods called?

Many white southerners felt that federal action and desegregating at Little Rock Central high school was similar to action taken during: apex

4x - 3y = -12 What is the slope and x and y intercepts

A parallelogram has sides of length 30 centimeters and 18 centimeters. One of its angles measures 58 degrees. Which is the best estimate for the area of the par

A garage floor measures 150 feet by 120 feet. A scale drawing of the floor on grid paper uses a scale of 1unit: 15 feet. What are the dimensions of the drawing

what does donde esta La Leche mean?

Based on the spreadsheet below, which of the following is a true statement? a. The net cash flow is negative. b. The net cash flow is zero. c. The net cash flow

Preterite Vs Imperfect Please help!!!!