Question

CAN ANYONE PLEASE HELP ME PLSS ANSWER MY QUESTION PLSS ​

Answer 1

Answer:

1.

Let one of the parallel sides be x.

Hence,

$\frac{1}{2} \times (x + 10) \times 4 = 34$

$= > (x + 10) = \frac{34 \times 2}{4}$

$= > x + 10 = 17$

$= > x = 17 - 10$

$= > x = 7$

2.

If a cylindrical is cut alongside its height,

Width if the rectangle,

Diameter of the cylinder = Width of rectangle

=> 2×r = 33. (r is radius of the cylinder)

=> r = 33/2

=> r = 16.5 cm

So, Lateral surface area (CSA)

CSA = 2πrh

Here,

r = 16.5 cm

CSA = 4224 cm²

Hence,

$2 \times \frac{22}{7} \times 16.5 \times h = 4224$

$= > {726h} = 4224 \times 7$

$= > h = \frac{4224 \times 7}{726}$

$= > h = 40.72\: cm$

Perimeter = 2(Length + Breadth)

here length = h = 40.72

and breadth is diameter of cylinder = 33

Hence,

P = 2(40.72 + 33)

= 2×73.72

= 147.45 cm

3.

Painting is done on CSA,

So,

CSA of one cylinder

= 2πrh

= 2× (22/7)×28×4

= 704 cm²

So, CSA of 24 cylinders

= 704 × 24

= 16896 cm²

4.

In the cuboid,

base area = 180 cm²

Base area is made of length×breadth

So,

=> lb = 180

As its volume is 140 cm³

lbh = 140

=> 180h = 140. (Since lb = 180)

=> h = 140/180

=> h = 0.77 cm

Every question is done

Hope it helps...

I m fully tired after this...