Question

please sent me the correct answer​

Answer 1

Answer:

Step-by-step explanation:

MC =7 CM

Now ΔDMC ; 1/2 × 7(MC) × h(DM) = 14 sq.cm

                     ⇒h(dm) =14 ×2/7    =4 cm

In case of ΔAMD , 1/2×AM×4=42 sq.cm

                             ⇒AM=42*2/4   =21 cm

Now,

        IN case of Δ CMB ⇒1/2*7(AM) *MB =28 sq.cm

                                      ⇒MB=28*2/7    =8 cm

Again,

          Area of the ΔAMB ⇒1/2*21*8  = 84sq.cm

Now,  BD=DM+MB=4+8 =12 cm

If MD =5 cm then MB will be =12-5 cm =7 cm.

Hope it helps you...