Question

Find the area of Fig15.68, in square cm, correct to one place of decimal.(Take π=22/7)

Answer 1

Answer:

115cm²

Step-by-step explanation:

To find the area of the given figure.

For the square ABCD,

The side AB=10cm

Thus, Area=10×10cm²

A semicircle is attached to side BC of the square.

The diameter of semicircle=10 cm

so, the radius of semicircle=5cm

The area of semicircle of radius r is A'=1/2πr²

By substituting the value of r,

A'=1/2×22/7×5×5=39.3cm²

From the above figure, it is seen that a right angle triangle is cutoff from one side of square.

The area of right angled triangle=1/2×bh=1/2×8×6=24cm²

Now, the area of above figure is,

Now, the area of above figure is,Area=area of square+area of semicircle-area of triangle=100+39.3-24=115cm²

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Answer 2

Answer:

thanks for the answer

Step-by-step explanation:

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