$\triangle DEF$ is right angled at E. If $m \angle D$ = $30^{0}$. What is the length (in cm) of DE, if EF = $2\sqrt{3}$ cm?

$\triangle DEF$ is right angled at E. If $m \angle D$ = $30^{0}$. What is the length (in cm) of DE, if EF = $2\sqrt{3}$ cm?
1). 3
2). 4
3). 6
4). 2

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (1+3)
Submit:

Other Questions

1. If the orthocentre and the centroid of a triangle are the same, then the triangle is:

2. Find the y-intercept of the line joining two points (1, 3) and (3, 5).

3. For a triangle clrcumcentre lies on one of its sides. The triangle is

4. $\triangle PQR$ has sides PQ and PR measuring 983 and 893 units respectively. How many such triangles are possible with all integral sides?

5. If the sides of a right angled triangle are three consecutive integers, then the length of the smallest side is

6. The length of diagonal of a square is 9√2 cm. The square is reshaped to form a equilateral triangle in such a way that the perimeter remains same. What is the area (in cm 2) of largest in circle that can be formed in that triangle?

7. Ratio of the number of sides of two regular polygons is 5:6 and the ratio of their each interior angle is 24:25. Then the number of sides of these two polygons are

8. ax + 5y = 8 has slope of $-\frac{4}{3}$. What is the value of a?

9. Two chords AB, CD of a circle with centre O intersect each other at P. $\angle ADP$ = $23^{0}$ and $\angle APC$ = $70^{0}$, then the $\angle BCD$ is

10. ABCD is a cyclic quadrilateral.AB and DC when produced meet at P. If PA = 8 cm, PB = 6 cm. PC = 4 cm, then the length (in cm) of PD is