Question

Answer this urgently........ ques no. 1,,2

Answer 1

answer 1 is 192cm square
Solution
s=a+b+c/2
$20 + 16 + 12 \div 2 =$
s=20+16+12/2=24
use herons formula.
underroot s*(s-a)(s-b)(s-c)
$\sqrt{24(24 - 20)(24 - 16)(24 - 12)}$
$\sqrt{24 \times 4 \times 8 \times 12}$
$\sqrt{12 \times 2 \times 2 \times 4 \times 4 \times 12}$
$12 \times 4 \times 2$
that is 96square cm.
area of both triangles of parellelogram is equal so area of parallelogram=2*area of triangle abc

Area of parallelogramABCD = 192 square cm


2nd is also same like this question.
if it helps mark as brainliest.

Answer 2

hope it's helpful to you