Find the area of the triangle …
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Posted by Aastha Soni 5 years, 5 months ago
- 2 answers
Sia ? 5 years, 5 months ago
s = (a+b+c)/2
where a, b, and c are the length of the three sides of a triangle
s = (35 + 45 + 50) / 2
= 130 / 2
= 65 cm
Area of scalene triangle is given by
A = sqrt (s (s - a) (s - b) (s - c))
= sqrt (65 * (65 - 35) ( 65 - 45) (65 - 50))
= sqrt (65 * 30 * 20 * 15)
= sqrt (585000)
= 764.853 sq cm
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Yogita Ingle 5 years, 5 months ago
Sides Of a Triangular Field are 50 cm , 45 cm, 35 cm
Let, First Side = a
Second Side = b
Third Side = c
We know that , Semi-perimeter = a+b+c/2
⇒ s = 50+45+35/2
⇒ = 50+80/2
⇒ = 130/2
⇒ = 65
Hence semi-perimeter is 65
Using Heron's Formula
Area = √s(s-a)(s-b)(s-c)
⇒ = √65(65-50)(65-45)(65-35)
⇒ = √65(15)(20)(30)
⇒ = √ 585000
⇒ area = 764.85 cm²
Now, we have to find
Required number of flower beds that can be prepared if each bed measures 5m²
=> 764.85m² /5m²
1Thank You