Question

a tailor has to do embroidery on the neck of a dress as shown in the figures what will be the length of the embedded part.

Answer 1

answer is 26cm so because 8+9+9=26cm

Answer 2

Answer:

38.57 cm

Step-by-step explanation:

We are given that,

Dimensions of the figure are 8 cm, 9 cm and 9 cm.

As, we can see that,

The design consist of a triangle and a semi-circle.

Since, Perimeter of a triangle = Sum of the sides

i.e. Perimeter of the triangle = 8 + 9 + 9 = 26 cm.

Also, the Perimeter of a semi-circle = $\frac{\pi d}{2}$, where d is the diameter of the circle.

So, Perimeter of the semi-circle = $\frac{\pi 8}{2}$

i.e. Perimeter of the semi-circle = $\frac{25.133}{2}$

i.e. Perimeter of the semi-circle = 12.57 cm

Thus, the total length of the embedded part = 26 + 12.57 = 38.57 cm

Hence, the length of the embedded part is 38.57 cm.