Question

ARC
In the given figure, find the perimeter
of Shaded region whise ADC, AEB and
BFC are semicircles on diameters
AB and BC respectively.
AC,
1.4cm
2.8 cm​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

13.2 cm

Step-by-step explanation:

Given:

Diameter of semicircle AEB= 2.8 cm

RADIUS OF SEMICIRCLE(AEB)= 2.8/2= 1.4 cm

Diameter of semicircle BFC=1.4 cm

RADIUS OF SEMICIRCLE(BFC)= 1.4/2= 0.7 cm

Diameter of semicircle ADC= 2.8+1.4 = 4.2 cm

RADIUS OF SEMICIRCLE(ADC) = 4.2/2= 2.1 cm.

Perimeter of the shaded region= sum of the arc of semicircle AEB, BFC and ADC= [π×1.4) +(π×0.7)+(π×2.1)] cm

= π(1.4+0.7+2.1) cm

=( 22/7) ×4.2

= 22× .6

= 13.2 cm

Hence, the perimeter of the shaded region is 13.2 cm

Hope this helps :)

Source: https://brainly.in/question/2195302