Question

The formula to calculate the perimeter of the banner is (a) 2 (l + b) (b) 2πrh + 2πr2 (c) πr + (2l + b) (d) 2 (l + b) + πr2​

Answer 1

Answer:

a. 2(l+b) is the correct answer

Answer 2

Answer:

Correct answer is (a) 2 (l + b).

Step-by-step explanation:

Perimeter is the sum of length of boundary for any given figure.

For, general geometric shapes like rectangle, square, rhombus, parallelogram, trapezoid, circle and so on, we can remember the formula.

And for non geometric shapes we can use integration to arrive at the answer.

Here, perimeter of banner is asked and generally the banners we see are in rectangle or square shape.

As, every square is a rectangle. We can use the formula of rectangle for generalising perimeter of banner.

Hence, option (a) 2(l + b) is the correct answer

#SPJ3