Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Perimeter of Traiangle |
Grade: 8-a Lesson: S1-L3 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
If the perimeter of a scalene triangle is 25 inches and two sides of a triangle a and b are 10 inch and 4 inch respectively, find the length of the third side c. |
|
2 |
Step |
Given perimeter(p) is |
25 inches |
3 |
Formula: |
Perimeter of scalene triangle is |
P = \$a+b+c\$ |
4 |
Step |
Substitute the values |
\$25 = 10 + 4 + c\$ |
5 |
Step |
Here, we need to find out the (c) value |
\$25 = 14 + c\$ |
6 |
Step |
After simplification |
\$c = 25 - 14 = 11\$ inches |
7 |
Step |
Therefore, the third side of scalene triangle is |
\$11\$ inches |
8 |
Answer |
C |
|
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