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eduard
3 years ago
13

Please solve this :)

Mathematics
1 answer:
scoray [572]3 years ago
5 0

Answer:

Step-by-step explanation:

hello :

cos66° = x/14

x= 14× cos66°

x= 14× 0.41

x=5.74

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the perimeter of the floor of a room is 18 metre and its height is 3 cm what is the area of 4 walls of the room​
Lina20 [59]

Note: The height of the room must be 3 m instead of 3 cm because 3 cm is too small and it cannot be the height of a room.

Given:

Perimeter of the floor of a room = 18 metre

Height of the room = 3 metre

To find:

The area of 4 walls of the room.

Solution:

We know that, the area of 4 walls of the room is the curved surface area of the cuboid room.

The curved surface area of the cuboid is

C.S.A.=2h(l+b)

Where, h is height, l is length and b is breadth.

Perimeter of the rectangular base is 2(l+b). So,

C.S.A.=\text{Perimeter of the base} \times h

Putting the given values, we get

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3 years ago
Please help! It’s urgent!
Gre4nikov [31]

Answer:

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5 0
2 years ago
Solve the equation. 4n−18=52
Margaret [11]
How to solve this: (in case you need it)
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A car is towed using a force of 1600N. The rope used to pull the car makes an angle of 25∘ with the horizontal. Find the work do
mezya [45]

Answer: 2900185 Joules

Step-by-step explanation:

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