NCERT 2022 | संश्लेषित रेशे एवं प्लास्टिक - L4 | CLASS8 विज्ञान | 8AM | Subhadra Mam

दोहरान |प्लास्टिक का पर्यावरण पर प्रभाव |4 R सिद्धांत |प्राकृतिक एवं संश्लेषित रेशों में अंतर |रेशों को जलाकर उसकी पहचान करना |सारांश

In Delta PQR, l(PQ) = 4 cm, l (QR) = 4 cm, l (PR) = 8 cm. Can you draw this triangle ? Why ?

Area of a rectangle = L xx B Perimeter of a rectangle = 2(L + B) where L and B are the length and breadth of the rectangle respectively. The breadth of a rectangle of length 4 m and area 8.4 m^(2) is

In a class room the ratio of number of girls to that of boys is 3:4 . The average height of students in the class is 4.6feet. If the average height of the boys in the class is 4.8 feet, then what is the average height of the girls in the class?

A bar magnet of magnetic dipole moment 8 Am^(2) has poles separated by 0.4 m . Find the pole strength of bar magnet .

Write the median class of the following distribution: Classes: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Frequency: 4 4 8 10 12 8 4