Question

6. Give the formulae for calculating the area of the following figures
(a) Square
(b) Triangle
(c) Circle
(d) Rectangle​

Answer 1

Answer:

a)a^2

b)1/2*b*h

c)pi r^2

d) l*b

Answer 2

Answer:

a) side*side

b) Right angled triangle: 1/2*base*height

Equilateral or scalene or isosceles triangle: use herons formula...

Step1:-

Find Semi-perimeter...

s=(a+b+c) /2

Step2:-

Use Herons formula...

√s(s-a) (s-b) (s-c)

c) π*r*r

d) length*breadth