Question

In the given figure PQRS is a rectangle. Find the area of shaded region.​

Answer 1

Answer:

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Step-by-step explanation:

R.E.F image 

Given : PS = 10 cm ; SR = 28 cm 

XR = 6 cm and RY = 20 cm 

PQRS is a rectangle.

∠P=∠Q=∠R=∠S=90∘

To find : Area of shaded region.

Area of shaded region = Area of rectangle - (Area of △PSY+Area of △XRY)

=(28×10)cm2−[21×8×10+21×20×6]cm2

=280cm2−2200cm2=280cm2−100cm2

Area of shaded region =180cm2

Answer 2

Answer:

300

Step-by-step explanation:

10+10=20

15 + 15=30

area of rectangle=30*20=600

area of shaded region=area of rectangle- area of unshaded region

area of unshaded region=1/2*l*b=1/2*10*15=75*4=300 because we can see that there are 4 triangles unshaded

600-300=300

Ans=300