Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Fractions: multiplication |
Grade: 8-a Lesson: S1-L7 |
Explanation: TODO |
Description:
Explanation | Answer |
---|---|
Problem |
Smitha wants to fence around a circular garden with a radius of 56 meters. If the cost of fencing is $13 per meter, find the total cost of fencing for the entire garden. (Use \$\pi = 22/7\$)? |
Operator used |
\$\times\$ |
Step - 1 |
The radius of garden = \$56 meters\$ |
Step - 2 |
Formula for perimeter of a circle = \$2 \pi r\$ = \$2 \times (22/\cancel7^1) \times \cancel56^8\$ = \$352 meters\$ |
Step - 3 |
The cost of fencing per meter = $13 |
Step - 4 |
Then, the cost of fencing for 352 meters = \$13(352)\$ = \$$4576\$ |
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