Math, asked by Rony1106, 3 months ago

find the area of the triangle PQR with Q(3,2) and the mid-points of the sides through Q being (2,-1) and (1,2)​

Answers

Answered by kulkarninishant346
3

Question?

find the area of the triangle PQR with Q(3,2) and the mid-points of the sides through Q being (2,-1) and (1,2)

\Huge\mathfrak\color{purple}{answer:}

\sf{ }

\bf{{\underline{Given~that}}:}

 \sf\: \:  area \: \:of  \:  \: :  \:the  \:  \:  \\triangle  \ \:  \: is  \:  \: PQR \: \: Q(3,2) and the mid-points of the sides through Q being (2,-1) and (1,2) \:  \:  \:  \:  \:  \\  \ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

\bf{{\underline{To~find}}:}

 \sf The \: curved \: surface \: area \: of \: the \: newly \: formed \\  \sf hollow \: cylinder. \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

\bf{{\underline{Here}}:}

 \sf CSA \: of \: the \: cylinder = area \: of \: the \: rectangle \\  \\  \sf \implies l \times b  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\  \sf \implies 30 \times 14  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \: \\  \sf \implies {\large{ \color{purple}{ \underline{ \boxed{ \bf 420cm^{2} }}}}} \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  ~

Answered by yashkumar14122001
0

Answer:

12

Step-by-step explanation:

answer of this question is 12

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