Question

what is the diagonal length of TV screen whose dimensions are 80 ×60cm? 1️⃣10cm , 2️⃣ 100cm, 3️⃣ 20cm, 4️⃣1000cm​

Answer 1

use pythagoras theorem

\sqrt{10} \times 10

10

×10

is the answer

Answer 2

Answer:

$\huge\mathcal{\green{Hola!}}$

$\huge\mathfrak{\red{Answer}}$

$\huge\mathcal{\green{2) \ 100}}$

Step-by-step explanation:

Given:-

Dimensions of the Rectangular Tv screen are 80cm × 60cm.

To find:-

The diagonal of the Tv screen.

To construct:-

Join BD.

In rectangle ABCD;

AD = BC = 60cm

CD = AB = 80cm

Now, ∆BCD is a right angled triangle. [ because all angles of a rectangle are 90°]

Using Pythagoras theorem; we have

$bd {}^{2} = {bc}^{2} + {cd}^{2}$

${bd}^{2} = 3600 + 6400 \\ bd = \sqrt{10000}$

$bd = 100$

$\huge\mathcal{\green{Therefore,}}$

Diagonal is 100cm.

$\huge\mathcal{\green{All \ the\ very \ best!}}$

$\huge\mathfrak{\red{@MissTranquil}}$