Question

Pada trapesium PITA ,PI//AT ,PI 3a cm AT 2a cm dan luas pita 100 cm berapa panjang pi dan at jika tinggi trapesium tersebut 8 cm

Answer 1

Ltrapesium = jumlah sisi sejajar x tinggi x 1/2
100 = (3a+2a) x 8 x 1/2
100 = 5a x 4
25 = 5a
a = 5

PI = 3a cm
PI = 3(5) cm
PI = 15 cm

AT = 2a cm
AT = 2(5) cm
AT = 10 cm