Question

area of rhombus
area of rectangle
area of triangle
area of parallelogram
area of square
​​

Answer 1

1) D1 × D2 / 2

2) l× b

3) 1/2 × b×h

4) b× h

5) s× s

Answer 2

Question⤵

what is the role of units while calculating ratio​

Answer⤵

$1.A= \frac{p q}{ 2}$

2. A=l×b

3.A=½ × b × h

4.A = b × h

$5.A=a2$

☣Hope it helps.❤❤