Question

The width of the rectangle is 2/3 of its length. If the perimeter of the rectangle is 80 cm. Find the dimensions of the rectangle and also find its area.a ball of mass 2kg is thrown up with a speed of 15m/s find the kinetic energy of the ball at the time of throwing (g=10m/s²)​The height of the solid cone is 12cm and the area of the base is 81 π sqcm , find the curved surface area of the cone.[Takeπ =3.14]a box has 75 pencils the teacher distributor 1 by 3 of the pencil how many pencils are left in the box ​

Answer 1

Answer:

So,here you go

Explanation:

2L + 2 [ (2/3) L ] = 80

2L + (4/3) L = (6/3) L + (4/3) L = (10/3) L = 80

L = 80 * 3/10 = 240/10 = 24

(2/3) L = (2/3) (24) = 16

Area = 24 cm. * 16 cm. = 384 square cm.