Question 69
In the triangle, If $$AB = AC$$ and $$\angle ABC = 72^\circ$$, then $$\angle BAC$$ is:
Solution
 By triangle properties,
When AB = AC then $$\angleABC = \angleACB$$ so,
In$$\triangle$$ ABC,
$$\Rightarrow$$ $$ \angle ABC +Â \angle ACB +Â \angle BAC = 180^{0}$$
$$\Rightarrow \angle ABC +Â \angle ABCÂ + \angle BAC = 180^{0}$$
$$\Rightarrow 72^{0} +Â 72^{0} +Â \angle BAC = 180^{0}$$
$$\Rightarrow \angle BAC =Â 180^{0} -Â 144^{0} = 36^{0}$$
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
CAT Quant Questions | CAT Quantitative Ability
CAT Time Speed Distance QuestionsCAT Averages QuestionsCAT Time, Distance and Work QuestionsCAT Data Sufficiency QuestionsCAT Linear Equations Questions
CAT DILR Questions | LRDI Questions For CAT
CAT Puzzles QuestionsCAT Miscellaneous LR QuestionsCAT DI with connected data sets QuestionsCAT DI Miscellaneous QuestionsCAT Data change over a period Questions
