Opiatalk.com

Best tips and tricks from media worldwide

Users' questions

# What is the area of a semicircle with a radius of 6?

=> 56.52 cm² .

## What is the formula for area of the semi circle?

The area of a semicircle can be calculated using the length of radius or diameter of the semicircle. The formula to calculate the area of the semicircle is given as, Area = πr2/2 = πd2/8, where ‘r’ is the radius, and ‘d’ is the diameter.

What is the perimeter of a semicircle with a radius of 6 cm?

The length of the straight part is just the diameter of the circle or 2 x radius which is 6 cm in this case. So the total perimeter of the semicircle is 3π+6 cms.

What is the function of a semi-circle?

A semicircle can be used to construct the arithmetic and geometric means of two lengths using straight-edge and compass. For a semicircle with a diameter of a + b, the length of its radius is the arithmetic mean of a and b (since the radius is half of the diameter).

### What is the perimeter of a semicircle with a radius of 5?

25.707 units
Find the perimeter of the semicircle if the radius is 5 units? = 25.707 units. Therefore, the perimeter of the semi-circle is 25.707 units.

### What is the perimeter formula of semicircle?

What Is the Perimeter of a Semicircle Formula? The perimeter of a semicircle formula = (πR + 2R) units, or R(π + 2).

What is the perimeter of a semi circle with radius 6cm?

The length of the curved part is half the circumference of the circle. So in this case that is 3π cm as the circumference is 2πr where r is the radius. The length of the straight part is just the diameter of the circle or 2 x radius which is 6 cm in this case. So the total perimeter of the semicircle is 3π+6 cms.

What is the perimeter of a semi circle?

The perimeter of a semicircle is half of the circumference plus the diameter.

## How many right angles does a semi circle have?

As you identify in your question, the real point of contention is the definition of angle. As the other answers have indicated, if your definition includes angles at the intersection of two curves then a semicircle certainly has two right angles.

## How many vertices does a semi circle have?

A semi-circle also has no vertices, because the intersections on the semi-circle are between a curved line and a straight line, instead of two straight lines.

What is the perimeter of a semi-circle?

How to calculate the semicircle area of a circle?

Semicircle area formula Knowing the semicircle definition – half of a circle – we can easily write the semicircle areaformula using the well-known circle area, πr²: Areasemicircle= Areacircle/ 2 = πr² / 2 The area of a semicircle is just a half of the area of a full circle.

### Which is the correct definition of a semicircle?

Semicircle definition A semicircle is simply half of a circle 🌗. When you cut a circle along a diameter line – or, in other words, through the circle centre – you’ll get a semicircle. The prefix semi- comes from Latin, and it means half or partly (like in words such as semi-permanent, semi-formal, semifinals).

### Is the angle inscribed in a semicircle always the same?

The angle inscribed in a semicircle is a line from both the ends of the diameter to any point of the semicircle. The angle inscribed in a semicircle is always 90° or a right angle. Is Perimeter and Circumference of a Semicircle Similar? Yes, the perimeter and the circumference of a semicircle are the same.

Which is an example of a half circle?

The shape of half circle occurs in: 1 home furniture and decorations such as mirrors, tables with semicircular counters, sofas, benches, rugs or even windows. 2 everyday objects like fans, protractors, circle skirts. 3 all food which comes in round, cylindrical or sphere shapes could also be sliced to approximate semicircles. Like for… More