Question

perimeter and Area of all types of triangle ​

Answer 1

right angle , acute angle

Answer 2

$\underline{Answer}$

$<b>Right-angled triangle </b>$

$area = \frac{1}{2} \times base \times perpendicular$

$perimeter = a + b + c$


$<b>Isoceles triangle </b>$


$area = \frac{1}{2} \times base \times height$


$perimeter = 2a + b$


$<b>Equilateral triangle </b>$


$area = \frac{ \sqrt{3} }{4} {a}^{2}$

$perimeter = 3a$

$<b>Scalene triangle </b>$


$semi - perimeter = \frac{a + b + c}{2}$

$<b>Area= √s(s-a)(s-b)(s-c)</b>$


$perimeter = a + b + c$