Question

Jawab dengan cara please yang tau

Answer 1

Luas juring = 90/360×Π×r²
=¼×3,14×100
=314÷4
=78,5

Luas segitiga = ½×a×t
=½×10×10
=5×10
=50

Shaded part = diarsir
=78,5-50
=28,5 .. sekian :D