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square values of numbers from 10 to 30 #maths

 Square values from 10-3 10 squared is 100 11 squared is 121 12 squared is 144 13 squared is 169 14 squared is 196 15 squared is 225 16 squared is 256 17 squared is 289 18 squared is 324 19 squared is 361 20 squared is 400 21 squared is 441 22 squared is 484 23 squared is 529 24 squared is 576 25 squared is 625 26 squared is 676 27 squared is 729 28 squared is 784 29 squared is 841 30 squared is 900

some numerical questions based on Pythagoras theorem to find unknown side of a triangle #maths #class7

A right triangle has legs of length 3 cm and 4 cm. What is the length of the hypotenuse? A ladder leaning against a wall forms a right triangle with the ground. If the ladder is 10 meters long and the foot of the ladder is 8 meters away from the wall, what is the height of the wall? A right triangle has a hypotenuse of length 10 cm and one leg of length 6 cm. What is the length of the other leg? A right triangle has legs of length 5 inches and 12 inches. What is the length of the hypotenuse? A flagpole casts a shadow that is 20 feet long. If the angle of elevation of the sun is 60 degrees, what is the height of the flagpole? (Assume that the ground is level.)

Hydrocarbon molecules - plastic, motor oil, diesel, gasoline

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Periodic table

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Lion cubs hiding in grass . Camouflage. Adaptations in lion

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8.5.3 p 94

Snow leopard. Thick fur. Adaptations in animals as per habitat.

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8.5.2 p 93

Gills help fish to use oxygen dissolved in water

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8.4 Habitat and adaptation p 91

Watch "Applications of Thermal Expansion and Contraction of Solids" on YouTube

https://youtu.be/2T4TV4xOZWg 6.3 page 73

Watch "Chemical changes vs. Physical changes" on YouTube

https://youtu.be/gCbqjs-pqJo

Irreversible change or chemical change in egg protein on heating

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