Semi arc area formula Known line 4.8, height 0.6, calculate area

Area = 1.9438, perimeter = 9.7976
I worked it out in CAD

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17. English translation 5.1 Design Engineering - It is the responsibility of design engineering at each manufacturing facility using material covered by this Standard,to provide the local Trane purchasing department with the current drawing number(s) of the most complex part(s) to be fabricated from this material. 5.2 Purchasing - It is the responsibility of the purchasing department at the manufacturing facility using material covered by this Standard,to include the drawing number(s) provided by design engineering,in the purchase order description for all material ordered.
18. English translation Three river toll station of Yidu first class highway construction management office.
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