# What is one fourth of a circle called?

## What is one fourth of a circle called?

How do you find the area of a 1/4 circle?

A quarter circle is one fourth of a circle. To find the area of a quarter circle, find the area of the whole circle by using the formula A = pi * r^2 and then divide by 4. To find the perimeter of the quarter circle, find the circumference of the whole circle, divide by 4, and then add the radius twice.

### What is the area of quadrant of circle?

Since there are four quadrants in a circle, you can just divide the area of the circle by 4. Therefore, Area of a Quadrant = πr2 / 4. Area of a Quadrant = 3.14 m2.

How many degrees are in one fourth of a circle?

90°

#### What is a full circle angle called?

The Full Circle A Full Circle is 360° Half a circle is 180° (called a Straight Angle) Quarter of a circle is 90° (called a Right Angle)

Why is a full circle 360?

A full circle is 360 degrees because the Babylonians used the sexagesimal system. It also represents the number of days a year and also because 360 is highly composite.

## What is full angle?

A full angle, also called a complete angle, round angle, or perigon, is an angle equal to radians. corresponding to the central angle of an entire circle. Four right angles or two straight angles equal one full angle.

Which kind of angle is the largest?

reflex angle

### Can a triangle have 2 90 degree angles?

Can a Triangle have Two Right Angles? Explain. No, a triangle can never have 2 right angles. A triangle has exactly 3 sides and the sum of interior angles sum up to 180°.

Which is the shortest side in right angle triangle?

and the shortest side is opposite the smallest angle. Thus, in a right triangle, the hypotenuse is always the longest side….

6-8-10 ( k = 2 )
3π-4π-5π ( k = π )

#### Why can a triangle only have one right angle?

Since the sum of all angles in any triangle is equal to 180o , so there can be only one right angle if all other angles are to be greater than zero. So the angle C would have to be zero, which is impossible.

What is the shortest side of a right triangle?

The shortest side is the one opposite the smallest angle. If the angle you already know is the shortest one, then the shortest side is opposite it. However, if the angle you already know is the medium one, then the shortest side is adjacent to it.

## Is Side A always longer than Side B in a right triangle?

2 Answers. Side A and B does not matter when your trying to apply this to the pythagorean theorem but side C must always be the hypotenuse. The hypotenuse is always the triangle’s longest side. It is opposite the right angle.

Are 2 sides equal in a right triangle?

A right triangle has one angle equal to 90 degrees. A right triangle can also be an isosceles triangle–which means that it has two sides that are equal. A right isosceles triangle has a 90-degree angle and two 45-degree angles.

### Can the opposite side be bigger than the hypotenuse?

No, it can’t. The largest angle in a right triangle is 90 degrees and it is the largest angle of the triangle. The side opposite the largest angle has to be the largest side.

Can a leg be bigger than the hypotenuse?

A leg cannot be longer than the hypotenuse. The largest angle in a right triangle is 90 degrees. opposite the 90 degree angle is the largest side.

#### Why is the hypotenuse of a right triangle longer than a leg of the triangle?

Since a right angle is half that (90°), it has to be the biggest angle in the triangle and the side across from it will always be the longest. …

Can the hypotenuse become the leg of a triangle?

Yes, the hypotenuse is always the longest side, but only for right angled triangles. For isosceles triangles, the two equal sides are known as the legs, while in an equilateral triangle all sides are known simply as sides.

## Do all triangles have a hypotenuse?

All right triangles have one right (90-degree) angle, and the hypotenuse is the side that is opposite or the right angle, or the longest side of the right triangle. The hypotenuse is the longest side of the triangle, and it’s also very easy to find using a couple of different methods.

How do you find hypotenuse of a right triangle?

In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle. The length of the hypotenuse can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides.

### What does Pythagorean theorem mean?

Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a2 + b2 = c2. …

What kind of triangles use the Pythagorean Theorem?

The converse of the Pythagorean theorem is a rule that is used to classify triangles as either right triangle, acute triangle, or obtuse triangle. Given the Pythagorean Theorem, a2 + b2 = c2, then: For an acute triangle, c2< a2 + b2, where c is the side opposite the acute angle.