tolong dibantu soal nomer 22,23,24,25.dan caranya kak

22. Keliling = 5+5+10+5+5+13+12+20+5
                  = 80 (D)
23. Luas = 1/2 x (AC x BD)
               = 1/2 x ([5+12] x [6+6])
               = 1/2 x (17 x 12)
               = 1/2 x 204
               = 102 (A)
24. Luas = [tex] \pi [/tex] x r x r
               = 22/7 x 10,5 x 10,5
               = 346,5 (C)
25. Luas = luas segitiga + luas persegi panjang - luas setengah lingkaran
               = (1/2 x 20 x 11) + (15 x 20) - 1/2 x 3,14 x 10 x 10
               = 110 + 300 - 157
               = 253 (B)