
The semicircle shown at left has center X and diameter W Z. The radius XY of the semicircle has length 2. The chord Y Z has length 2. What is the area of the shaded sector formed by obtuse angle WXY?

RADIUS = 2
CHORD = 2
RADIUS --> XY , XZ , WX
( BEZ THEY TOUCH CIRCUMFERENCE OF THE CIRCLES AFTER STARTING FROM CENTRE OF THE CIRCLE)

THE AREA OF THE SHADED SECTOR FORMED BY OBTUSE ANGLE WXY.

AREA COVERED BY THE ANGLE IN A SEMI SPHERE


Total Area Of The Semi Sphere:-

Area Under Unshaded Part .
Given a triangle with each side 2 units.
This proves that it's is a equilateral triangle which means it's all angles r of 60° or π/3 Radian
So AREA :-


Total Area - Area Under Unshaded Part


Its -3 because of the 2 open circles on the line x = -3
Six hundred seventy-two thousandths <0.8
Factors are numbers that can be multiplied by an integer to obtain the desired integer
The size of the human hair is <u>1.0 × 10⁻⁴ meters </u>
Reason:
The given parameters are;
The size of an hydrogen atom is 5 × 10⁻¹¹ meters
The width of the human hair is 6 times as big
Therefore, we have;
The width of the human hair is 2 × 10⁶ times as big, therefore, we have;
The size of the human hair = 5× 10⁻¹¹ × 2 × 10⁶ = 1.0 × 10⁻⁴
The size of the human hair is <u>1.0 × 10⁻⁴ meters</u>
Learn more about factors here:
brainly.com/question/17176261
B) that the number signifies is included in the inequality