40/
than to return downstream at the same spot. Find the specu ulu
For the following frequency distribution, draw a cumulative frequency curve of more than
type' and hence, obtain the median.
10 -10
Class
Frequency
quency
10-20
15
20 - 30 T 30 - 40
20
23
40-50
17
50-60
11
60 - 70
9
1
OR
Answers
Answered by
0
Answer:
In △ABC AB=AC
⇒∠B=∠C (Angles opposite to equal sides are equal)
Now using angle sum property
∠A+∠B+∠C=180
∘
⇒80
∘
+∠C+∠C=180
∘
⇒2∠C=180
∘
−80
∘
⇒∠C=
2
100
∘
=50
∘
now ∠C+∠x=180
∘
(Angles made on straight line (AC) are supplementary)
⇒50
∘
+∠x=180
∘
⇒∠x=180
∘
−50
∘
=130
∘
@ARSH
insta@_arsh_deep_29
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