#3: A 1/2bh 1/2(12)(5) 30 #4: C bh (11)(12) 132 #5: B A=bh 525=15h 525/15=h 35 #6: C bh (25)(19) 475
#7: A A=LxW 1450=50xW 1450/50=W 29=W #8: D I broke it into to 2 squares and added them together (4.0x13.0)+(4.0x10) 52+40 92 #9: B Same with this problem (9x4)+(6x2) 36+12 48 #10: B (6x8)+1/2(10x5) 48+25 73