Question

draw a kite whose side is 20 cm. Draw it’s diagonals. Colour ¼ of the kite red, another ¼ green and remaining ½ of the kite blue. Find out the area of the each colour in the kite. How much colour ribbon is needed to decorate the border of the kite​

Answer 1

Step-by-step explanation:

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Answer 2

A kite has two pairs of congruent adjacent sides and it's diagonals bisect each other at 90 degrees.

The sides of the kite are 20cm each and the diagonals are equal to the square root of $(20^2 + 20^2) = 20*\sqrt(2) = 28.28cm.$

The area of the kite can be calculated using the formula (d1d2)/2, where d1 and d2 are the lengths of the diagonals.

The area of the kite =$(28.2828.28)/2 = 400 square cm.$

¼ of the kite is red, another ¼ is green and remaining ½ of the kite is blue. So,

The area of the red and green color = $(1/4)*400 = 100 square cm.$

The area of the blue color = $(1/2)*400 = 200 square cm.$

To decorate the border of the kite with a ribbon, the length of the ribbon needed can be calculated by the perimeter of the kite which can be calculated by adding all the sides of the kite.

Perimeter of the kite = 4*20 = 80cm

So, the length of the ribbon needed to decorate the border of the kite is 80cm

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