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Find centroid of shaded area.

written 3.5 years ago by teamques10 ★ 68k

modified 2.7 years ago by pedsangini276 • 4.8k

engineering mechanics

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written 3.5 years ago by teamques10 ★ 68k

Sr. No.	Part	Area	X coordindate of C.G (x1)	Y coordinate of C.G (y1)	Ax1	Ay1
1	Rectangle l=200, b=100	$A=l\times b =200 \times100=20000$	$\dfrac{l}{2} = \dfrac{200}{2}= 100$	$\dfrac {b}{2} = \dfrac{100}{2} = 50$	$20000 \times 100$= 2000000	$20000 \times 50$ = 1000000
2	Triangle b=60, h=50	$0.5\times b\times h$
$0.5\times 60 \times 50$= 1500	$2\times \dfrac{b}{3}$= $2 \times 60 /3$ = 40	$100+\dfrac{h}{3} = 100+\dfrac{50}{3}$
=116.67	$1500 \times 40$ = 60000	$1500 \times 116.67$= 175005
3	Semicircle radius (r)=50	$-0.5\times\pi\times r^2$

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