Question

Find the area of a square whose side is (2a+76)cm​

Answer 1

Answer:

4a + 304a + 5776

Step-by-step explanation:

(2a+76)^

4a+304a+5776

area of square =a^2

Answer 2

Answer:

Area = 4a² + 304a + 5776 cm²

Step-by-step explanation:

▪︎Area of a Sq. is side × side.

• ( 2a + 76 ) × ( 2a + 76 )
• = ( 2a + 76 )²
• = (2a)² + (2×2a×76) + (76)²
• = 4a² + 304a + 5776

▪︎Identity used here is (a+b)² = a² + 2ab + b²

Hope it helps,

thanks!