Matematika

Pertanyaan

bantuin aku kaka pliss
bantuin aku kaka pliss

1 Jawaban

  • D = 14 r = 7, d1 = 14 d2 = 26-7 = 21
    luas layang layang = d1xd2/2
    = 14x21/2 = 147 cm²
    luas 3/4 lingkaran = 3/4xΠxr²
    = 3/4x22/7x7x7
    =115,5
    L.layang + L.¾lingkaran
    =147+115,5 = 262,5 cm²