Question
The sides of a triangle measure 13 cm, 14 cm, and 15 cm.
Find the area of the triangle.Solution
Using Heron’s formula, s = (a + b + c) / 2, where s is the semi-perimeter. s = (13 + 14 + 15) / 2 = 21 cm. 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
The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represente...
The columns and rows Matrix - I are numbered from 0 to 4 and that of Matrix - II are numbered from 5 to 8. A letter from these matrixes is to be represe...
The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represente...
The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represente...
Rows of Matrix I are numbered 0 to 4 and that of matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row an...
