Working With Right Triangles

                                 Lesson 1

 

                                           Problem: In a right triangle normal is 24 cm, hypotenuse is 44,

                                                              And the angle is 65 degrees. Find the value of base? 

                                          

                                           Solution   In the right angle triangle,

                                           Step 1:      

                           

                                           Solution   Cos < = base/hypotenuse

                                           Step 2:          

                            

                                           Solution   Cos 65 = base/44 => 0.4 x 44 = base =>   Base = 17.6

                                           Step 3:                                           

                   

                                           Solution   Answer is: 17.6

                                           Step 4:            

                   Complete

                                           Try two practice problems:

                                                                       

                                                                Do the following:

 

A.

In a right triangle normal is 12 cm, hypotenuse is 23 and with the angle 34. Find the value of base?

B.

In a right triangle normal is 20 cm, hypotenuse is 56. Find the value of base?

 

 

 

 

 

 

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