in the figure MN and PQ are the arcs of two concentric circle of radii 7cm and 3.5cn respectively and angle MON=30° find the area of the shaded regin
Attachments:
Answers
Answered by
3
Step-by-step explanation:
the formula of find area of arc is
radius × angle made by center
and solve the question
Attachments:
Answered by
1
Answer:
Step-by-step explanation:
theta =30
r=7cm
R=3.5cm
area of shaded region=area of major sector-area of minor sector
=πr²∅/360-πR²∅/360
=π∅/360(r²-R²)
=22×30/7×360(7+3.5)(7-3.5)
=11/7×6(10.5)(3.5)
=11×105×35/7×3×2×10×10
=11×35/2×100
=192.5/100
=1.925cm²
Similar questions