Question ;
Find the perimeter of these polygons.
Answer ;
1. P = 12a = 4 × 12 = 48
= 48
2. P = 2(l+w) = 2·(7+2) = 18
= 18
3. P= 5a = 5·3 = 15
= 15
4. P= 2(a+b) = 2·(2.75+3.33) = 12.16
= 12.16
5. P = a+b+c = 8+10+12 = 30
= 30
6. P =2(l+w) = 2·(14.67+12.67) = 54.68
= 54.68
Step-by-step explanation ;
∝ Formula To Find The Perimeter Of a Cube ;
- Measure the length of one edge of the cube
- Each edge of a cube is the same length.
- Count the number of edges of the cube
- Every cube has 12 edges.
- Multiply the number of edges by the length of the edge to find the perimeter
- For example, if the edge length of a cube is 10 inches, then 10 inches multiplied by 12 edges equals 120 inches.
∝ Formula To Find The Perimeter Of a Rectangle ;
⇒ P=2(l+w)
∝ Formula To Find The Perimeter Of The Triangle ;
⇒ P=a+b+c
∝ Formula To Find The Perimeter Of a Kite ;
⇒ P=2(a+b)
∝ Formula To Find The Perimeter Of a Pentagon ;
⇒ P=5a
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