Class 9th math 2.1 solution english PCTB 11 March 20251 March 2025 by Umar Zaheer Question 4: The circumference of the Earth at the equator is about 40075000 meters. Express this number in scientific notation. Solution: \[4.0075 \times 10^7 \] Main Page← Previous...1314151617Next →Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17