Question

Write a program to accept the length and breadth of a rectangle display the area ook f a triangle ?

Answer 1

Answer:

Here, l=(5.7±0.1)cm,b=(3.4±0.2)cm

Area, A = l×b=5.7×3.4=19.38cm2=19.0cm2 (rounding off to two significant figures)

∴A△A=±(l△l+b△b)

= ±(5.70.1+3.40.2)=±(5.7×3.40.34+1.14)=±19.381.48

⇒△A=±19.381.48×A=±19.381.48×19.38=±1.48

△A=±1.5 (rounding off to two significant figures);

Area = (19.0±1.5)cm2.