Math, asked by punjsingh536, 2 months ago

(3a +
2a + 2
14.
Find the adjoining figure, find the value of a.
Rectangle
2a +6
stalst.
Perimeter 129 = 14

Answers

Answered by NINJA2490

1

Answer:

Diameter=10cm

∴ Radius=

2

10

=5cm

According to question,

Perimeter of figure=Circumference of semi-circle+ diameter

=πr+D

=

7

22

×5+10=

7

110

+10

=

7

110+70

=

7

180

=25.71cm.

Thus, the perimeter of the given figure is 25.71cm

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