Question
A triangle has sides 13 cm, 14 cm, and 15 cm. Find the
area of the triangle.Solution
Using Heron’s formula: Semi-perimeter (s) = (13 + 14 + 15)/2 = 21 Area = √[s(s - a)(s - b)(s - c)] = √[21(21 - 13)(21 - 14)(21 - 15)] = √[21 × 8 × 7 × 6] = √7056 = 84 cm² Correct answer: a) 84 cm²
Who among the following celebrate their birthdays immediately before and immediately after Kansal?
Statements:
U > R ≥ T = S > P; T < Q > C < M
Conclusions:
I). Â U < Q
II). Â Q > P
...Who among the following does like name character Ashwani?
Which of the following statements is/are not true?
Who among the following was born in the month of December?
Whose anniversary is falling earlier than that of anyone else in the group?
What is the difference between the floor number of K and P?
Which of the following box is at the top?
Who among the following is younger than Rakesh only?
Which of the following items is contained in Box 5?
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