Saved Bookmarks
| 1. |
DA110°4. In the given triangle ABC, AB = AC.Find all the three angles of the triangle.B13'AC |
|
Answer» Answer: 1.=55⁰ 2.=70⁰ 3.=55⁰ Step-by-step explanation: Since, AB=AC angle 3 = angle 1 let angle 1 be x ,then angle 1+angle 3 = 110. (SUM of two interior angle of a TRIANGLE= exterior angle) X+X=110 2x=110 , X= 110/2 =55 therefore , angle 1 and angle 3 is 55⁰. angle 1+angle 3+angle 2=180⁰ (angle sum property) 55+55+angle 2=180 angle 2=180-110 =70 therefore angle 2 is 70⁰.
|
|