What is the area of the shaded region
2 answers:
The area of the shaded region is 8.86 sq cm.
Step-by-step explanation:
Given,
In rectangle
Length (l) = 4 cm
Width (w) = 3 cm
In circle
Radius (r) = 1 cm
To find the area of the shaded region
Area of the shaded region = area of the rectangle - area of the circle
Formula
Area of the rectangle = l×w
Area of the circle = π
Now,
Area of the rectangle = 3×4 sq cm = 12 sq cm
Area of the circle = π = π =3.14 sq cm [ taking the value of π as 3.14]
Area of the shaded region = 12-3.14 sq cm = 8.86 sq cm
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Answer:
<u>Diagram 1</u>
Draw a circle with a radius of 8 cm, ensuring you have clearly marked the center point (black circle with center C1)
Add a point on the circumference of the circle (point C2)
Draw a second circle of radius 8cm with point C2 as its center (red circle with center C2).
<u>Diagram 2</u>
The red circle intersects the black circle at two points (D and E).
Connect these 2 points of intersection with a line segment.
<u>Diagram 3</u>
Draw a third circle with center D and radius DE (shown in blue)
This circle intersects the black circle at point F.
<u>Diagram 4</u>
Draw 2 line segments to connect points D and E with point F - this is your equilateral triangle inside the circle!
