Diagram 3rd picture
Answers
Answer:
Step-by-step explanation:
Answer:
254.34 cm²
Step-by-step explanation:
Area of Shaded Region = Area of semi-Circle with diameter AB - (area of semicircle with diameter AM + Area of semicircle with diameter MB)
Area of semicircle with diameter AB = πR²÷2
= 3.14 × 18 × 18 ÷ 2
= 508.68 cm²
We know that, the Area of semicircle with diameter AM = the area of semicircle with diameter MB [Radius is equal]
So, ar(semicircle with diameter AM + semicircle with diameter MB) = ar(circle)
Ar(Circle) = πR²
= 3.14 × 9 × 9
= 254.34 cm²
Area of Shaded Region = 508.68 cm² - 254.34 cm²
= 254.34 cm²