# Heron backlaw

Calculate missing side in a triangle with sides 17 and 34 and area 275.

Result

x =  33

#### Solution:

$\alpha = \arcsin(\dfrac{2 \cdot 275 }{ 17 \cdot 34}) = 72^\circ 5'35" \ \\ \ \\ x = \sqrt{ 17^2+34^2-2 \cdot 17 \cdot 34 \cdot \cos( \alpha) } = 33$ Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! Tips to related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?
Cosine rule uses trigonometric SAS triangle calculator.

## Next similar math problems:

1. Diamond Rhombus has side 17 cm and and one of diagonal 22 cm long. Calculate its area.
2. Sss triangle Calculate the area and heights in the triangle ABC by sides a = 8cm, b = 11cm, c = 12cm
3. Triangle The triangle has known all three sides: a=5.5 m, b=5.3 m, c= 7.8 m. Calculate area of ​this triangle.
4. Triangle Calculate heights of the triangle ABC if sides of the triangle are a=75, b=84 and c=33.
5. Triangle Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle. a = 158 b = 185 c = 201
6. The farmer The farmer would like to first seed his small field. The required amount depends on the seed area. Field has a triangular shape. The farmer had fenced field, so he knows the lengths of the sides: 119, 111 and 90 meters. Find a suitable way to determine t
7. Sines In ▵ ABC, if sin(α)=0.5 and sin(β)=0.6 calculate sin(γ)
8. Find the 9 Find the missing angle in the triangle and then name triangle. Angles are: 95, 2x+15, x+3
9. Center traverse It is true that the middle traverse bisects the triangle?
10. Theorem prove We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
11. Fifth of the number The fifth of the number is by 24 less than that number. What is the number?
12. Glass Trader ordered from the manufacturer 200 cut glass. The manufacturer confirmed the order that the glass in boxes sent a kit containing either four or six glasses. Total sent 41 boxes. a) How many boxes will contain only 4 glasses? b) How many boxes will c
13. Boxes 200 boxes have been straightened in three rows. The first was 13 more than in the second, and in the second was one fifth more than in the third one. How many boxes are in each row?
14. Fraction For what x expression ? equals zero?
15. Book Alena read a book at speed 15 pages per day. If she read twice as fast she should read a book four days earlier. How many pages have a book?
16. Pine How much of a mixed forest rangers want to cut down, if their head said: "We only cut down pine trees, which in our mixed forest 98%. After cut pine trees constitute 94% of all trees left."
17. Ravens On two trees sitting 17 ravens. If 3 ravens flew from first to second tree and 5 ravens took off from second tree then the first tree has 2 times more ravens than second tree. How many ravens was originally on every tree?