Q55 of 142 Page 88

State whether the statements are true (T) or false (F).
The square of 2.8 is 78.4.

Given: 2.8

As we know,

(2.8)² = 7.84

and 7.84 ≠ 78.4

Hence, the given statement is false.

State whether the statements are true (T) or false (F).

The square root of 1521 is 31.

State whether the statements are true (T) or false (F).

Each prime factor appears 3 times in its cube.

State whether the statements are true (T) or false (F).

The cube of 0.4 is 0.064.

State whether the statements are true (T) or false (F).

The square root of 0.9 is 0.3.

State whether the statements are true (T) or false (F).The square of 2.8 is 78.4.