Question

In the figure, A(A ABC)= 32 cm², A(AADC) = 12 cm , DC = 3 cm and BD=x then the value of x is (A) 5 cm (B) 8 cm (C) 4 cm (D) 6 cm ​

Answer 1

Answer:

5 cm

Step-by-step explanation:

AB=AD=y and AC=z

(x+3) zy=32

xyz+3zy=32

3zy=32-xyz

3zy=12

12=32-xyz

xyz=32-12=20

x(12/3)=20

x = 20/4 = 5cm