# How to find the area of an obtuse triangle

## How do you find the area of an obtuse triangle?

Finding the Area

For an obtuse triangle, any side of the figure can be considered the base, so measure one of the sides **and insert it into the formula area = 1/2 x (base x height)**. For example, if the base is 3 and the height is 6, your calculation would be 1/2 times 3 times 6 equals 9.

## How do you find the area of an obtuse triangle without the height?

## What is the rule for obtuse triangle?

An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90° degrees. In an obtuse triangle,

**if one angle measures more than 90°, then the sum of the remaining two angles is less than 90°**. Here, the triangle ABC is an obtuse triangle, as ∠A measures more than 90 degrees.## How do you find the area and perimeter of an obtuse triangle?

## How do you calculate obtuse?

You can calculate an obtuse triangle

**using the lengths of the triangle’s sides**. Square the length of both sides of the triangle that intersect to create the obtuse angle, and add the squares together. For example, if the lengths of the sides measure 3 and 2, then squaring them would result in 9 and 4.## What is in obtuse angle?

An obtuse angle has

**a measurement greater than 90 degrees but less than 180 degrees**. However, A reflex angle measures more than 180 degrees but less than 360 degrees. So, an angle of 190 degrees would be reflex.## Do obtuse triangles add up to 180?

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.## How do you find the hypotenuse of an obtuse triangle?

**It is impossible to find**the hypotenuse of an obtuse triangle because an obtuse triangle does not have a hypotenuse.

## How do you find the area of an acute triangle?

## How do you solve an obtuse angle?

To find if a triangle is obtuse, we can look at the angles mentioned. If one angle is greater than 90° and the other two angles are lesser along with their sum being lesser than 90°, we can say that the triangle is an obtuse triangle. For example, ΔABC has these angle measures ∠A = 120°, ∠A = 40°, ∠A = 20°.

## How do you find the value of an obtuse angle?

## Do all triangle add up to 180?

Did you know that if you add up the number of degrees in the three angles of any triangle, it always adds up to the same number? It’s true!

## How do you know if a triangle is obtuse?

An acute triangle has three angles that each measure less than 90 degrees. An obtuse triangle is

**a triangle with one angle that is greater than 90 degrees**.## How do you construct an obtuse triangle?

**Construction**

- Draw a horizontal line segment from point to by a ruler. …
- Use protractor and mark a point at an obtuse angle. …
- Take a compass and set it to any length by a ruler. …
- Finally, join the points and by a line for completing the construction of a triangle geometrically.

## How do you find a hypotenuse?

The hypotenuse is termed as the longest side of a right-angled triangle. To find the longest side we use the hypotenuse formula that can be easily driven from the Pythagoras theorem, (Hypotenuse)

^{2}= (Base)^{2}+ (Altitude)^{2}. Hypotenuse formula**= √((base)**.^{2}+ (height)^{2}) (or) c = √(a^{2}+ b^{2})## Is there a triangle that doesn’t add up to 180?

**A hyperbolic triangle**, whose sides are arcs of these semicircles, has angles that add up to less than 180 degrees. All the black and white shapes in the figure on the left are hyperbolic triangles.