Question

Please solve Q no. 69

Answer 1

in given fig

perimeter of fig= perimeter of rectangle + 4*permiter of arc of radius 2/perimeter of circle

perimeter of given fig=2*(20+10)+2*3.14+2

=60+12.56

=72.56

hope it helps you

Answer 2

Answer:

56.6m

Step-by-step explanation:

Given :

To find the perimeter of the given figure,.

Solution :

Perimeter = 2 × (length of the rectangle - 2 × radius of the quadrant) + 2 × (breadth of the rectangle - 2 × radius of the quadrant) + 4 × length of the arc of quadrant

⇒ 2 × (20 - 2 × 2) + 2 × ( 10 - 2 × 2) + 4 × (πr)/2

⇒ 2 × ( 20 - 4) + 2 × (10 - 4) + 2 × π × 2

⇒ 2 × 16 + 2 × 6 + 4π

⇒ 32 + 12 + 4 × 3.14

⇒ 44 + 12.56 = 56.56 ≈ 56.6m