Math, asked by sahil4452, 11 months ago

OACB is a quadrant of a circle with Centre O and radius 3.5 CM if OD is equal to 2 cm find the area of the shaded region the perimeter of the shaded region

Answers

Answered by Rahulsingh05271

OK BRO BYEE BRO PZZ leave ME OK

Attachments:

sahil4452: perimeter of the shaded region

sahil4452: this is incomplete

sahil4452: pls complete

Rahulsingh05271: Ok bhai kerdiya ha dobara sa kiya ha

sahil4452: nhi yr perimeter nikaalna hai

Rahulsingh05271: Bhai ya questio NCERT ka ha merko jes sikhaya ha wesa bhai mena kiya ha

Rahulsingh05271: Bhai dobara kiy h dekh

Rahulsingh05271: shaded region bhi nikana h dekho

sahil4452: chal ..thnku

Rahulsingh05271: Hmm

Answered by DangerousBomb

$\huge{\underline{\bigstar{\sf{solution!!}}}}$

Given,OACB is a quadrant of a circle

Radius = 3.5 =7/2 cm; OD= 2cm

$\large{\sf{area\: of \: the \: shaded \: region = area \: of \: a \: quadrant \: cricle - area \:of \: triangle \:BOB}}$

=1/4πr²-1/2×b×h

=1/4×22/7×7/2×7/2-1/2×7/2×2

=11×7/2×2×2 -7/2

[=77/8-7/2

=9.625-3.5

$\large{\boxed{\sf{=6.125cm2}}}$

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