First symmetrically cut the pentagon to get 5 pieces. (So that you will get the idea that this polygon is divided into 5 triangles)
Then find the area of one of the triangles:
Area of Triangle =
A = × 4 × 10
A = 20 m²
To find the area of the whole pentagon shape:
A = 20 × 5 = 100 m²
<em>Hope it helps!</em>
Answer:1122
Step-by-step explanation:
Hve to work out the general equation first by calculating the common difference-16.
Answer:
62.34
Step-by-step explanation:
Substitute n = 0 to n = 5 into the expression and sum the terms, that is
3 [ +
+
+
+
+
]
= 3 [ 1 + +
+
+
+
]
= 3( )
= 3 × 20.781
= 62.34 ( to the nearest hundredth )