Answer:
Step-by-step explanation:
we have a right angle triangle composited in a semi-circle we want to figure out the area of the triangle
in order to do so we need to figure out the adjacent side (height AB)
since the given triangle is a right angle triangle we can consider <u>Pythagoras</u><u> </u><u>theorem </u>given by
given that,a=21 and c=28
substitute:
move left hand side expression to right hand side and change its sign:
square root both sides:
use algebraic indentity:
simplify:
use redical property:
now to figure out the area we can consider the following formula:
remember that,h=AB=7√7 and b=BC=21 thus substitute:
simplify multiplication:
hence,
the area of the triangle is <u>1</u><u>9</u><u>4</u><u> </u> (approximately)
note: you can also use <em>horon's </em>formula but I like to keep things simple
Answer:
<em>The ball will roll upto </em><em>1 m.</em>
Step-by-step explanation:
A 1 kg ball has 10 joules of kinetic energy and starts to roll up a hill.
As along the hill the ball rises up, it loses its kinetic energy. The kinetic energy is converted to potential energy.
According to the law of conservation of energy, the kinetic energy plus the potential energy equals a constant.
Here given kinetic energy as 10 J, so this energy will get converted to potential energy.
We know that, potential energy is
where,
m is the mass, g is the acceleration due to gravity and h is the height.
Putting the values,
492.9
I have to make this 20 characters long ..
Length times width times height is how I learned how to do these questions
Answer:
,myntbr
Step-by-step explanation:
ntergsfedaesyntu,l8