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Prove that in any triangle the sum of the squares of any two sides is equal to twice the square of half of the third side together with twice the square of the median, which bisects the third side.
Ans: To prove AB2 + AC2 = 2AD2 + 2 (1/2 BC)2
Draw AE ⊥ BC
In Δ ABD since ∠D > 900
∴AB2 = AD2 + BD2 + 2BD x DE ....(1)
Δ ACD since ∠ D < 90o
AC2 = AD2 + DC2 - 2DC x DE ....(2)
Adding (1) & (2)
AB2 + AC2 = 2(AD2 + BD2)
= 2(AD2 + ( 1/2 BC )2)
Or AB2 + AC2 = 2 (AD2 + BD2)
Hence proved
shares and dividend
miaty and yesenia have a group of base ten blocks.Misty has six more than yesnia. Yesenia''s blocks repersent 17 together they have 22 blocks,and the total of blocks repersent 85.
subtract 20and 10,and then mutiply by 5
#How are Indian customers visiting Shoppers’ Stop any different from customers of developed western countries?
i dont now how to do it
make an assignment based on congruence of triangle
What is Plotting Points? To "plot" or "graph" values means to find points on a number line. The numbers four, negative two, negative three, zero, two, and negative four are bei
GIVE ME EXAMPLES
A two-digit number is seven times the sum of its digits. The number formed by reversing the digits is 18 less than the original number. Find the original number.
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