Steps-5

Title: Area of 3D shapes

Grade Lesson s4-l6

Explanation: Hello Students, time to practice and review the steps for the problem.

Quiz: Discussion Step

Discussion: Steps1 Steps2 Steps3 Steps4 Steps5

Id Type Name Note

1

Problem

Find the total surface area of a container in a cylindrical shape whose diameter is 26 cm and height is 18 cm. use value π is 3.14.

2

Step

Given diameter is and the height(h) is

26 cm and 18 cm

3

Formula

Radius(r) of the cylinder \$r = (diameter)/2\$.

4

Step

Substitute the value in above formula:

\$(26)/2\$

r =13cm

5

Formula

Area of the cylinder: \$A = 2πr(h + r)\$

6

Step

Plug the values in the area of cylinder formula:

\$A = 2 \times 3.14 \times 13(18 + 13)\$

\$A = 2 \times 3.14 \times 13(31) = 2530.84\$

7

Solution

So, the total surface area of the cylindrical container is 2530 sq cm

8

Sumup

Please summarize steps

Choices

9

Choice-A

This is incorrect. It’s not the result of the correct calculation

Wrong 2515 sq cm

10

Choice-B

This is very close to the correct answer, but slightly off. This might occur due to rounding differences during calculation

Wrong 2533 sq cm

11

Choice-C

This option is correct; it matches the calculated value

Correct 2530.84 sq cm

12

Choice-D

This is an incorrect option; it’s greater than the correct value

Wrong 2532 sq cm

13

Answer

Option

C

14

Sumup

Please summarize choices

Discussion: Steps1 Steps2 Steps3 Steps4 Steps5

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