Kerjakan no. 23 & 25,,, PLEASE

25. BC = √40kuadrat+30kuadrat = √2500 = 25
Luas segitiga BAC = Luas segitiga ABDC
1/2 x 40 x 30 = 1/2 x 50 x AD
24. = AD
AE=ED=1/2AD= 1/2 x 24 = 12
Luas BAC = Luas ABEC + Luas EBDC
Luas ABEC = 1/2 x CA x AB - 1/2 x CB x ED
= 1/2 x 40 x 30 - 1/2 x 50 x 12
= 300 cm persegi