Question

A farmer needs to replant a triangular section of crops that died unexpectedly. One side of the triangle measures 186 yards, another measures 205 yards and the angle formed by these two sides is 148 degrees. What is the area of the section of crops that needs to be replanted? 1 BI . A ...

Answer 1

of the triangle is 186 fard from the given data. side other side of the trangle is 205 yard Angle between these two sides one Heu 1989 e-186 } B Q1480 a-205 cosine rule, 2 t e cos(B) =cos (1980) - -ban hierac 62 "+c-qaccos LB) b- kos) 2+ (186) ? _ qx 205 x 186* cos(148) 141293,148 Ń le, il 375.889 i Š 376 Jaoody. hence, 3rd side of the triangle is 376 yard,

Now, area of D ABC, SCS-a) (sob) (s-c) athte a thre rost 1861 376 383.5 Arear 383.5X(383.5-205) (383.5-186) (383.5-376) 10139 8598 10obg. 687) loo70 yard? hence Area of section of crops that need need to be replaned is 2 10070 yard