Question

please answer que. 18 ​

Answer 1

Answer:

slots for the first time I was just wondering if you

Answer 2

GiveN :-

• Length of BC = 12 cm

• Length of AD = 3 cm

• Length of CE = 4cm

To FinD

• Length of AB

SolutioN :-

Area of ∆ ABC in which AD is height and BC is base

$\longrightarrow \sf Area = \frac{1}{2} \times AD \times BC \\ \\\longrightarrow \sf Area = \frac{1}{2} \times 3 \times 12 \\ \\\longrightarrow \sf Area =3 \times 6 \\ \\\longrightarrow \sf Area =18 \: {cm}^{2}$

Now area of ∆ ABC is which CE is height and AB is base

$\longrightarrow \sf Area = \frac{1}{2} \times EC \times AB \\ \\\longrightarrow \sf18 = \frac{1}{2} \times 4 \times AB \\ \\\longrightarrow \sf AB = \frac{18}{2} \\ \\\longrightarrow \sf AB = 9 \: cm$