class 7 ncert ch 12 and 6 math
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THE ANSWER OF Q4 IS
ALLWAYS THE SUM OF ANGLES OF A TRIANGLE IS 180 DEGREE
SO HERE IT IS 50 AND 60 DEGREE WHOSE SUM IS 110 DEGREE NOW 110 DEGREE SUBTRACTED FROM 180 DEGREE IS 70 DEGREE
SO THE VALUE OF THE X IS 70 DEGREE
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3. In a triangle, the sum of the lengths of either two sides is always greater than the third side. Given that, the sides of the triangle are 2 cm, 3 cm, 5 cm. Hence, this triangle is not possible.
5. 1cm
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