Tolong pake cara ya kak :)

Mapel : Matematika
Materi : Bangun Datar


22]

Luas bangun :
= (72/360) x Luas Lingkaran
= (1/5) x 3,14 x 10²
= (1/5) x 314
= 62,8 cm²

23]

Keliling bangun
= (2 x 7) + (2 x 8) + (2 x 5)
= 14 + 16 + 10
= 30 + 10
= 40 cm