3 years ago

Find the area of the quadrilateral in the figure.

Mathematics

1 answer:

gulaghasi [49]3 years ago

8 0

The answer is option C.

This is a composite figure made up from a right angled triangles ( with sides 3, 4 and 5) and an isoceles triangle with 2 sides both equal to 6.

Area of the right angled triangle = 1/2 * 3 * 4 = 6 sq units.

Height of the isosceles triangle = sqrt (6^2 - 2.5^2) = 5.454

Its area = 1/2 * 5 * 5.454 = 13.635

So area of the whole figure = 19.64 sq units

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