Question

Pakai caranya .tolong dibantunya

Answer 1

Ngeblur tolong dong klo mw ngasih soal pk foto, fotonya yg bener

Answer 2

A. K persegi panjang= 2p + 2l
=30+30+20+20
=100cm

K O(lingkaran) = phi x d
=3,14 x 20
=62,8cm

K diarsir = K persegi panjang- K O
= 100cm-62,8cm
= 37,2 cm





b. L P.panjang= p x l
=30x20
= 600 cm²

L O = phi x r² (r=20:2=10)
= 3,14 x 10 x 10
= 314 cm²


L daerah yg diarsir = L persegi panjang - L O
=600-314cm²
= 286cm²