Alright, lets get started.
Angle 3 and angle 4 are adjacent angles because they are having the common side.
They both are on straight line, so, their addition will be 180°.
Suppose angle 4 is x , hence
angle 4 + angle 3 = 180

Subtracting 89 from both sides

°
Hence angle 4 is 91°. : Answer
Hope it will help :)
Answer:
the volume of the sphere will be 4 times the volume of the cone;
Step-by-step explanation:
<u>The question is on volume comparison</u>
Volume of a sphere=4/3
×r³
Volume of a cone=
/3×r²h
where r is the radius and h is the height
<u>Apply the condition</u>
If r=h=1 unit
Then volume of sphere will be= 4/3 ×
×1³ = 4/3
And volume of the cone will be=
/3 ×1²×1 =
/3
We can see the volume of the sphere will be 4 times the volume of the cone;
4/3
= 4×
/3