Math, asked by mannusharmam733, 10 months ago

(ग) A ABC और A DEF दो ऐसे त्रिभुज हैं कि
-AB BC_AC_4
| DE EF DF 9
नो AABC का क्षेत्रफल
- का मान होगा
ADEF का क्षेत्रफल
I
8​

Answers

Answered by arsh122100
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

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