Question

Find the area of shaded portion​

Answer 1

Answer:

easy 1505m^2

Step-by-step explanation:

first find total area =42x40=1680m^2

now find uncovered portion =15x5+10x10

=75+100=175m^2

to find covered portion subtract total area -uncovered portion

covered area =1680-175=1505m^2

Answer 2

$\large\rm\pink{Solution}$

$\tt{\hookrightarrow}$So basically here we have three rectangles named ABCD, AEFG & HIKC

$\tt{\hookrightarrow}$Firstly we will find area of Bigger rectangle ie. ABCD

$\fbox\blue{AREA~=~l×b}$

$\tt{\hookrightarrow Area~=~AB~×~BC}$

$\tt{\hookrightarrow Area~=~40~×~42}$

$\large{\sf{Area~=~1680 m²}}$

$\tt{\hookrightarrow}$ Now we need to find area of small rectangles that are AEFG & HIKC

$\tt{\hookrightarrow Area~of~rectangle~AEGF~=~15~×~5}$

$\large{\sf{Area~=~75m²}}$

$\tt{\hookrightarrow Area~of~HIKC~=~10~×~10}$

$\large{\sf{Area~=~100cm²}}$

Here we can find the area of shaded region by subtracting sum of small rectangles from the big rectangle.

$\rm{\dashrightarrow 1680~-~(100~+~75)}$

$\rm{\dashrightarrow 1680~-~175}$

$\rm{\dashrightarrow Area~=~1505 m²}$

.°. Area of shaded region = 1505m²

_______________________

$\red{\sf\frak{-~shashi1979bala}}$