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16 votes
16 votes
Find area of isosceles triangle 13cm 10cm

User Sodruldeen Mustapha
by
2.7k points

2 Answers

21 votes
21 votes

Answer:

65 cm^2 or centimeter squared

Explanation:

area of a triangle is

1/2 * b * h

1/2 * 13 * 10

65

User Tobiloba
by
2.9k points
19 votes
19 votes

Answer:

The area of isosceles triangle is 65 cm².

Step-by-step explanation:

SOLUTION :

Here's the required formula to find the area of Isosceles triangle :


\longrightarrow{\pmb{\sf{A = (1)/(2) bh}}}

  • A = Area
  • b = base
  • h = height

Substituting all the given values in the formula to find the area of Isosceles triangle :


\implies{\sf{A_((\triangle)) = (1)/(2) bh}}


\implies{\sf{A_((\triangle)) = (1)/(2) * b * h}}


\implies{\sf{A_((\triangle)) = (1)/(2) * 13 * 10}}


\implies{\sf{A_((\triangle)) = \frac{1}{\cancel{2}} * 13 * \cancel{10}}}


\implies{\sf{A_((\triangle)) = 1 * 13 * 5}}


\implies{\sf{A_((\triangle)) = 13 * 5}}


\implies{\sf{A_((\triangle)) = 65}}


\star{\boxed{\sf{\red{A_((\triangle)) = 65 \: {cm}^(2)}}}}

Hence, the area of isosceles triangle is 65 cm².


\rule{200}2

LEARN MORE :


\begin{gathered}\begin{gathered}\begin{gathered}\begin{gathered}\begin{gathered}\boxed{\begin{minipage}{9cm}\\ \dag\quad \Large\underline{\bf Formulas\:of\:Triangle:-}\\ \\ \star\sf Triangle \:area = (1)/(2)* b * h\\ \\ \star\sf Triangle \: perimeter=a+b+c\\\\ \star\sf Scalene\:\triangle=√(s (s-a)(s-b)(s-c))\\\\\star\sf Equilateral\: \triangle\:area = (√(3))/(4)*{side}^(2)\\\\\star\sf Equilateral \:\triangle\:perimeter = 3 * side\\\\\star\sf Isosceles\: \triangle\:area= (3)/(4)\sqrt{{4b}^(2)-{a}^(2)}\\\\\star\sf Isosceles\:\triangle\:perimeter=a+2b\end{minipage}}\end{gathered}\end{gathered}\end{gathered}\end{gathered}\end{gathered}


\rule{220pt}{3.5pt}

User CZoellner
by
3.0k points