Question

Find the shaded region,,,​

Answer 1

Answer:

129.5 cm²

Step-by-step explanation:

The area of the shaded region = ar ( semicircle OQPR) - ar (ΔPQR)

                                                    =1/2πr² - 1/2* PQ* PR

RQ=√PQ²+ RP² = √98 = 7√2

r= 7√2/2

Area of shaded region= 1/2 * 22/7 * 49* 2 - 49/2

                                      =  22*7*2/2- 49/2

=  308/2- 49/2

= 259/2

= 129.5 cm²