Question

raju decide to celebrate his birthday at an orphanage.he brought 100 return gifts which were triangular in shape with sides 10,14,18.after wrapping all return gifts he decided to put colored tape on sides of triangle formed by joining the mid-point of the sides of each of the triangular gift

1.what is the total length of the tape required ?

Answer 1

The length of the tape required will be 2100.

Step-by-step explanation:

If we join the midpoints of two sides of a triangle then the length of the segment formed will be half of the third side of the triangle.

So, the triangle formed by joining the midpoints of all the sides of a big triangle then the perimeter of the small triangle will be half of the perimeter of the large triangle.

Now, perimeter of the large triangle is (10 + 14 + 18) = 42 and the perimeter of the small triangle will be (42 ÷ 2) = 21.

Now, for 100 return gift, the length of the tape required will be (21 × 100) = 2100. (Answer)