tlong bntu jwb y mksih

jawab


OC = 6
OD = √(CD²-OC²) = √(10²-6²) = 8
OE = √(DE²-OD²) = √(17² - 8²) = 15
 
BD = 2OD = 16
CE= OC +OE = 6 + 15   = 21

Luas bangun = Luas jajar genjang + luas belah ketupat
L = (AB)(OE) + 1/2 (BD)(CE)
L = (20)(15) + 1/2 (16)(21)
L = 300 + 168
L = 468