Question

plz do answer fast and correct​

Answer 1

Answer:

answer is a

l=24m

b=7m

hope it will help you

Answer 2

$\Large{\underline{\underline{\mathfrak{Given \: :}}}}$

• The length of a rectangle is 10m more than twice its width.
• Perimeter = 62m.

$\:$

$\Large{\underline{\underline{\mathfrak{To \: Find \: :}}}}$

• The length and width of the rectangle.

$\:$

$\Large{\underline{\underline{\mathfrak{Formula \: Used \: :}}}}$

• $\fbox{\sf{2(Length + Breadth) = Perimeter}}$

$\:$

$\Large{\underline{\underline{\mathfrak{Solution \: :}}}}$

Let the breadth or width be x.

Then, length = 2x + 10.

ATQ,

$\leadsto \: {\sf{2(Length + Breadth) = Perimeter}}$

$\leadsto \: {\sf{ 2(2x + 10 + x) = 62 }}$

$\leadsto \: {\sf{ 2(3x + 10) = 62 }}$

$\leadsto \: {\sf{ 6x + 20 = 62 }}$

$\leadsto \: {\sf{ 6x = 62 - 20 }}$

$\leadsto \: {\sf{ x = \Large{\cancel{\frac{42}{6}}} }}$

$\leadsto \: {\sf{ x = 7 }}$

Hence,

• Width = 7m
• Length = 2x + 10 = (2 × 7) + 10 = 14 + 10 = 24m

So, option (a) L = 24m and B = 7m is correct.