Find the sum of the measures all the interior angles of a polygon having 12 sides.
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Analyze the figure shown below in which DE || BC and the other dimensions are as follows: AD=3 cm, BD=4 cm, AE=4.4 cm and DE=6 cm. Calculate the length (in cm) of BC.
What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?
If tanα = 2 - 1, then the value of tanα - cotα = ?
Calculate the sum of squares from 1 to 9.
The value of Sin 60 is
Compute : (50 + 0.5 x 20) / 0.7
The HCF of 36,54 and 108 is