# What is Kurai English?

## What is Kurai English?

The Japanese word **kurai** is an adjective that translates to mean "dark" or "gloomy."

## What is an oblique triangle?

An **oblique triangle** is any **triangle** that is not a right **triangle**. It could be an acute **triangle** (all threee angles of the **triangle** are less than right angles) or it could be an **obtuse triangle** (one of the three angles is greater than a right angle).

## Do all triangles equal 180?

In a Euclidean space, the sum of angles of a **triangle equals** the straight angle (**180** degrees, π radians, two right angles, or a half-turn). ... Its difference from **180**° is a case of angular defect and serves as an important distinction for geometric systems.

## Is the longest side of an oblique triangle always opposite the largest angle of the triangle?

The **longest side** in a **triangle** is **opposite the largest angle**, and the shortest **side** is **opposite** the smallest **angle**. **Triangle** Inequality: In any **triangle**, the sum of the lengths of any two **sides** is greater than the length of the third **side**.

## Can we have a triangle with two obtuse angles?

1 Answer. No, because if the **triangle have two obtuse angles** i.e., more than 90° **angle**, then the sum of all three **angles** of a **triangle** will not be equal to 180°.

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

An **obtuse triangle** (or **obtuse**-**angled triangle**) is a **triangle** with **one obtuse angle** (greater than 90°) and two acute **angles**. Since a **triangle's angles** must sum to 180° in Euclidean geometry, no Euclidean **triangle can have** more than **one obtuse angle**.

## Can a triangle have all angles less than 60 degree?

No, a **triangle** cannot **have all angles less than 60**°, because if **all angles** will be **less than 60**°, then their sum will not be equal to 180°.

## Can a triangle have all angles more than 60 degree?

A **triangle** cannot **have** neither **all** the **angles** less **than 60 degree** nor **greater than 60 degrees**. **All** the **angles** in a **triangle can** never be less **than 60** nor **greater than 60**. However **all** the **angles can** be acute ,whether only two of them.

## Can a triangle have 2 right angles?

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°. ... Thus, it is not possible to **have** a **triangle** with **2 right angles**.

## Which is the longest side of a right triangle?

hypotenuse

## Can a right triangle be a scalene triangle?

In a **right triangle**, one of the angles is a **right** angle? an angle of 90 degrees. A **right triangle** may be **isosceles** or **scalene**.

## Which Triangle Cannot be drawn?

According to the first triangle inequality **theorem**, the lengths of any two **sides** of a triangle must add up to more than the length of the third **side**. This means that you cannot draw a triangle that has **side** lengths 2, 7 and 12, for instance, since 2 + 7 is less than 12.

## What are the six types of triangles?

**The six types of triangles are: isosceles, equilateral, scalene, obtuse, acute, and right.**

- An isosceles
**triangle**is a**triangle**with two congruent sides and one unique side and angle. ... - An equilateral
**triangle**is a**triangle**with three congruent sides and three congruent angles.

## What is the 4 types of triangles?

Triangle Types and Classifications: **Isosceles**, **Equilateral**, Obtuse, Acute and **Scalene**.

## What is S in Triangle?

Another is Heron's formula which gives the area in terms of the three sides of the **triangle**, specifically, as the square root of the product **s**(**s** – a)(**s** – b)(**s** – c) where **s** is the semiperimeter of the **triangle**, that is, **s** = (a + b + c)/2. ...

## What is S in the Herons formula?

What does **s** represents in **Heron's Formula**? The **s** in **Heron's formula** denotes the semi-perimeter of a triangle, whose area has to be evaluated. Semi-perimeter is equal to the sum of all three sides of the triangle divided by 2. **S** = (a+b+c)/2. Where a, b and c are three sides of a triangle.

## What is a height of a triangle?

A **triangle's height** is the length of a perpendicular line segment originating on a side and intersecting the opposite angle. In an equilateral **triangle**, like △SUN △ S U N below, each **height** is the line segment that splits a side in half and is also an angle bisector of the opposite angle.

## Who found Heron's formula?

Heron of Alexandria

## What is Heron's Formula Class 9?

Students, we have learned to find the area of the triangles using a simple **formula**, that is, A = 1/2 x base x height where the base and height of the triangle is known to us. But in **Heron's formula**, we will use the length of all three sides of the triangle to calculate its area. Now let us see how it is possible.

## How do you find area with 3 sides?

The **area** of a triangle is defined as the total region that is enclosed by **the three sides** of any particular triangle. Basically, it is equal to half of the base times height, i.e. A = 1/2 × b × h. Hence, to **find** the **area** of a tri-**sided** polygon, we have to **know the** base (b) and height (h) of it.

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