Question:The area of a circle inscircle in an equilateral triangle of side 24 cm, is : 

A `18 π cm^2` 
B `24 π cm^2` 
C `36 π cm^2` 
D `48 π cm^2` 

+ Answer
D 

+ Explanation
`1/2 xx 24 xx h = sqrt(3)/4 xx 24 xx 24 or h`

`= 12sqrt(3)`

`:. 3r = 12sqrt(3) or r = 4sqrt(3)`

:. Area of circle` = π xx (4sqrt(3))^2`

      `= (48 π) cm^2`.

+ Report

Irin Moni

Editor, VCampus

Your Name

Your Email

Type of Report
Spelling MistakeIncorrect AnswerGrammar MistakeContent MissingImproper Text FormatInsufficient AnswerDuplicate QuestionImproper Sentence StructureImproper Equation/FormulaOther

Description