Question

29m area rounded nearest tenth

Answer 1

In short: 29 rounded to the nearest ten is 30.

Explanation:

Locate the tens place (2) then look at the digit to the right (9): In this case, the digit to the right (9) is 5 or above. So, we add 1 to the tens place (2).The digit(s) after the (2) are replaced by zeros (or dropped). Thus, we get 30 as the answer.

Answer 2

The height of building is 21 m

Explanation:

According to the Pythagorus Theorem

(Hypotenuse)² = (Base)² + (Perpendicular)²

We need to find out the perpendiclar so arranging the equation

(Hypotenuse)² - (Base)² = (Perpendicular)²

Putting the values

(36)² - (29)² = (Perpendicular)²

1296 - 841 = (Perpendicular)²

455 = (Perpendicular)²

Taking Square root on both sides

√455 = √(Perpendicular)²

21.33 = Perpendicular

Rounding off the value is 21 m