Question

UFO's are any unexplained moving object observed in the sky, especially one assumed by some observers to be of extraterrestrial (coming from the place outside the planet Earth) origin. Rahul a student of class
IX has interest in a space science. So, he makes a shape of UFO which is shown in below figure. In this figure ABCD is a rectangle and the equilateral Triangles BCQ and ADS are described on its sides AD and BC respectively. A right triangle is described on the side AB and a scalene triangle DCP is described on side DC.

Answer the following questions Q9 - Q12 that arises in mind of Rahul by looking the figure.
1)area of abcd
2)area of rab
3)area of dcp
the total area of ufo is​

Answer 1

Answer:

1) A = 48 cm²

2) A = 24 cm²

3) A = 14.5 cm³

Step-by-step explanation:

1) Area = length x width

= 6 cm x 8 cm

= 48 cm²

2) Area = 1/2(base x height)

= 1/2( 8 cm x 6 cm)

= 24 cm²

3) Let a = 8, b = 9, c = 11

S = 8 +9 + 11 / 2 = 14

A = √S(S-a)(S-b)(S-c)

= √14(6)(5)(3)

= 6√35 cm³ or 35.5 cm³