Question

Find the length of a wooden plank of width 2.5 m, thickness 0.025 m and volume
0.25 m.​

Answer 1

Answer:

width= 2.5 m

thickness=0.025m

let length be l

therefor volume =l*b*h

l*2.5*0.025= 0.0625l m^3

but the volume = 0.25 m^3

therefore 0.0625l = 0.25

l = 0.25/0.0625

l = 1/25

l= 0.04m

Answer 2

Step-by-step explanation:

Here,

↪V is the volume,

↪L is the length and,

↪H is the height.

Put their values and find the length of the given rectangle.

➡$\sf{}:\implies 0.25=L\times 0.025\times 2.5:$

➡$\sf{}:\implies 0.25=L\times 0.0625$

➡$\sf{}:\implies \dfrac{0.25}{0.0625}$

➡$\sf{}:\implies L=0.25\div 0.0625:$

➡$\sf{}:\implies L=\dfrac{25}{100}\div \dfrac{635}{1000}:$

➡$\sf{}:\implies L=\dfrac{25}{100}\times \dfrac{10000}{625}:$

➡L=4m

✡extra information✡

• area of a rectangle= length×breadth
• 1 cm = 10 mm
• 1 m = 100 cm
• 1 m = 10 dm

✡what is area?✡

The measure of the surface and closed by a plane figure is called its area.

Area of rectangle = L × B

here,

L = Length

B = Breadth