Answer:
Surface area = 1135.73
Step-by-step explanation:
Calculate the height first = base 7cm & hyp 25cm = 24cm length. A=lw+l(w2)2+h2+w(l2)2+h2=30·7+30·(7
2)2+242+7·(30
2)2+242≈1135.72957
