Rectangular trapezoid

Calculate the area of a rectangular trapezoid with a right angle at point A and if |AC| = 4 cm, |BC| = 3 cm, and the diagonal AC is perpendicular to the side BC.

Final Answer:

S =  9.84 cm2

Step-by-step explanation:

AC=4 cm BC=3 cm  AB=BC2+AC2=32+42=5 cm  S1 = S2 2BC AC = 2AB h BC AC = AB h  3 4 = 5 h h=3 54=53 4=512=2.4 cm h = AD = CX BX2 = BC2  h2 BX=BC2h2=322.42=59=1.8 cm CD=ABBX=51.8=516=3.2 cm  S=CD h+2h BX=3.2 2.4+22.4 1.8=9.84 cm2



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