I think that one number is 77 and the other is 86. 77 + 9 is 86. 86 +77 is 163.
The striped wall and the floor intersect at a 90 degrees angle since they are perpendicular.
<h3>What is an
angle?</h3>
An angle is formed when two or more lines intersect at a point. Types of angles are<em> acute, obtuse, and right angled</em>.
Two lines are said to be perpendicular if there is a 90 degrees angle between them.
The striped wall and the floor intersect at a 90 degrees angle since they are perpendicular.
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Answer:
1/3
Step-by-step explanation:
I think not sure.
90-20 leaves 70 for surfing. since surfing is 5 per hour, 70/5=14 hours she can surf.
