Question

Will mark brainiest if correct!
Find the area of a triangle ABC when c = 15 m, a = 20 meters, and b = 10 meters.

Answer 1

Answer:

75

Step-by-step explanation:

10 * 15 / 2

do you have a picture of it so I can see if my answer is correct

Answer 2

The area of triangle is 72.62 square meters.

What is a triangle?

A triangle is a flat geometric figure that has three sides and three angles. The sum of the interior angles of a triangle is equal to 180°. The exterior angles sum up to 360°.

For the given situation,

The sides of triangle are

a = 20 meters, b = 10 meters, c = 15 meters

The formula of area of triangle is

$A=\sqrt{s(s-a)(s-b)(s-c)}$, where

$s=\frac{a+b+c}{2}$

Now, calculate s as

$s=\frac{20+10+15}{2}$

⇒ $s=\frac{45}{2}$

⇒ $s=22.5$

Thus area of triangle is

⇒ $A=\sqrt{22.5(22.5-20)(22.5-10)(22.5-15)}$

⇒ $A=\sqrt{22.5(2.5)(-12.5)(-7.5)}$

⇒ $A=\sqrt{5273.4375}$

⇒ $A=72.618$ ≈ $72.62$

Hence we can conclude that the area of triangle is 72.62 square meters.

Learn more about triangles here

https://brainly.com/question/11708636

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