Side of a square is 3×10^4 meters Its area is
Answers
Step-by-step explanation:
SOLUTION
TO CHOOSE THE CORRECT OPTION
Side of a square is 3 × 10⁴ meters it's area is
A. 6 × 10⁴ m²
B. 9 × 10⁴ m²
\sf C. \: 9 \times {10}^{8} \: \: {m}^{2}C.9×10
8
m
2
\sf D. \: 9 \times {10}^{16} \: \: {m}^{2}D.9×10
16
m
2
EVALUATION
Here it is given that the Side of the square is 3 × 10⁴ meters
Hence the required area of the square
= ( Side)²
\sf{ = {(3 \times {10}^{4} )}^{2} \: \: {m}^{2} }=(3×10
4
)
2
m
2
\sf{ = {3}^{2} \times {( {10}^{4} )}^{2} \: \: {m}^{2} }=3
2
×(10
4
)
2
m
2
\sf{ = 9 \times {10}^{4 \times 2} \: \: {m}^{2} }=9×10
4×2
m
2
\sf{ = 9 \times {10}^{8} \: \: {m}^{2} }=9×10
8
m
2
FINAL ANSWER
Hence the correct option is \sf C. \: 9 \times {10}^{8} \: \: {m}^{2}C.9×10
8
m
2
Answer:
Here it is given that the Side of the square is 3 × 10⁴ meters
To find area= ( Side)²
=(3 x 10^4)^2
=3^2 x 10^4*2
=9 x 10^8.
Hence, the area is 9 x 10^8.