Consider the following. Given: △ABC with m∠A = 45°, m∠B = 30°, and BC = 10Find:AB △A B C is given. ∠A is 45° and ∠B is 30°. Draw altitude  CD  from C to  AB.  Determine the measures of ∠DCA and ∠DCB in degrees. m∠DCA= °m∠DCB= ° Find the exact lengths of  CD, AD, and DB. CD=       AD=

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter12: Multiplication Of Decimal Fractions
Section: Chapter Questions
Problem 13A: The length, L, of the point on any standard 118° included angle drill, as shown in Figure 12-5, can...
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Consider the following.
Given:
△ABC with m∠A = 45°, m∠B = 30°, and
BC = 10
Find:AB
A B C is given. ∠A is 45° and ∠B is 30°.
Draw altitude 
CD
 from C to 
AB.
 Determine the measures of ∠DCA and ∠DCB in degrees.
m∠DCA= °m∠DCB= °
Find the exact lengths of 
CD, AD, and DB.
CD=
 
 
 
AD=
 
 
 
DB=
 
 
 
Find AB. Give both an exact solution and an approximate solution to two decimal places.
exactAB=
 
 
 
approximateAB=
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