~work out the size of one exterior angle of a regular hexagon ~
1 answer:
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Answer:
105 cm²
Step-by-step explanation:
The figure is composed of a rectangle and a triangle
area of rectangle = 15 × 6 = 90 cm²
area of triangle = bh ( b is the base and h the height )
Here b = 15 - 9 = 6 and h = 11 - 6 = 5 , thus
area of triangle = × 6 × 5 = 3 × 5 = 15 cm²
Total area = 90 + 15 = 105 cm²
Given:
The expression is
To find:
The numerical value of the given expression.
Solution:
We have,
On simplification, we get
Therefore, the numerical value of the given expression is and the correct option is B.