calculate the area with error limit
l= (5.4+ 0.1)m
b=(3.4+0.2)m
Answers
Answered by
1
Answer:
breadth = 3.4 ± 0.2 cm
A = Lb
= (5.7 × 3.4)
= 19.38 cm²
ΔA = A × (ΔL/L + Δb/b)
= 19.38 × (0.1/5.7 + 0.2/3.4)
= 1.48 cm²
Area of rectangle = (19.38 ± 1.48) cm²
Explanation:
Answered by
1
Answer:Hey buddy!!!
Here is your answer
l=(5.7±0.1)cm,b=(3.4±0.2)cm
Area, A = l×b=5.7×3.4=19.38cm
2
=19.0cm
2
(rounding off to two significant figures)
∴
A
△A
=±(
l
△l
+
b
△b
)
= ±(
5.7
0.1
+
3.4
0.2
)=±(
5.7×3.4
0.34+1.14
)=±
19.38
1.48
⇒△A=±
19.38
1.48
×A=±
19.38
1.48
×19.38=±1.48
△A=±1.5 (rounding off to two significant figures);
Area = (19.0±1.5)cm
2
hope it helped if it did pls ark it as the brainliest!!!
thx a million times : )
Explanation:
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