Two equilateral triangles of sides 10√3 cm are joined to form a quadrilateral. What is the altitude of the quadrilateral?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 15 cm
| Understanding | Application |
|
Given: Side = a = 10√3 |
Height of the equilateral triangle = √3/2 a = √3/2 × 10√3 = 30/2 = 15 cm |
| Altitude of the quadrilateral = Height of the equilateral triangle |
Hence, Altitude of the quadrilateral = 15 cm |