Question
Two triangles DEF and XYZ are congruent to each other
such that DE = 10 cm, YZ = 24 cm, and ∠DEF = ∠XYZ = 90⁰. Find the circumradius of ΔDEF.Solution
According to the question: If two triangles are congruent to each other, then their corresponding sides and angles are equal. We have, ΔDEF ≅ ΔXYZ. So, EF = YZ = 24 cm. ΔDEF is a right-angled triangle. So, by the Pythagorean theorem: DF² = DE² + EF². So, DF² = 10² + 24². Or, DF² = 100 + 576 = 676. Or, DF = 26. But length cannot be negative. So, DF = 26 cm. Now, the circumradius of a right-angled triangle = (hypotenuse/2). So, the circumradius of ΔDEF = (26/2) = 13 cm.
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Find the odd one out
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Find out the odd letter/letters pair from the given alternatives.
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Find the one which does not belong to that group?
Four of the following five are alike in a certain way based on a group, which among the following does not belong to that group?
Out of the given words, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is different fr...
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Relevant for Exams:
