KAK TOLONG BANTU DIKUMPULKAN HARI INI…​

Jawab:

1 a 40 cm^2, 30 cm

 b 24 cm^2, 40 cm

2 A = 130, C= 130, B= 50

3 R = 80, S = 50, Q = 50

Penjelasan dengan langkah-langkah:

1 a Luas = 10 x 4 =40 cm^2

    Keliling = 2 (10+5) = 30 cm

 b Luas = 1/2 x 8 x 6 = 24 cm^2

    Keliling = 4 x 10 cm = 40 cm

2 A = 130, C= 130, B= 50

3 R = 80, S = 50, Q = 50