Simplify [2 (cos 210 + i sin 210)]^2
1 answer:
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Answer:
The correct option is B.
Step-by-step explanation:
The area of triangle is
Where, b is the base of the triangle and h is the height of the triangle.
It is given that the base of the triangle is 10 inch and the height of the triangle is 14 inch.
The area of given triangle is
Therefore the area of triangle is 70 square inch and the option B is correct.
Check the picture below.
so the figure is really just 3 rectangles and two triangles.
simply get the area of all 5, sum them up, and that's the area of the figure.
recall that area of a triangle A = ½bh.
so the figure is really just 3 rectangles and two triangles.
simply get the area of all 5, sum them up, and that's the area of the figure.
recall that area of a triangle A = ½bh.