<em>Answer</em>
D) 1
<em>Explanation</em>
A perpendicular line makes a angle of 90° with a line or a plane.
If a line is to be drawn from a point to a line or a plain it can only be one. In this case a line is to be drawn through a point A to a plane P. If the line is to be perpendicular, then is is only one.
From the choices, the appropriate answer is D) 1
The sphere has surface are of 900π m².
Step-by-step explanation:
Given,
Diameter = d = 30m
Radius = 
Surface area of sphere = 
The sphere has surface are of 900π m².
Keywords: Surface area, multiplication
Learn more about spheres at:
#LearnwithBrainly
Answer:
Its either 300 or 315
Step-by-step explanation:
Mainly because 20 ×15= 300 but the triangles on the side, I can't figure it out. I eliminated 82 and 420, 420 mainly because I got it wrong and 82 doesn't make sense.
Answer:
a= 
Step-by-step explanation:
40/100= 56/x
40x=100(56)
40x=5600
Divide both sides by 40 to get x alone.
X=140
