The angles of the triangle are 3x – 40, x + 20 and 2x – 10 then th – InterviewSolution

1.

The angles of the triangle are 3x – 40, x + 20 and 2x – 10 then the value of x is (1) 40° (2) 35° (3) 50° (4) 45°

Answer»

(2) 35°

3x – 40 + x + 20 + 2x- 10 – 180° ⇒ 6x = 210 ⇒ x = 35°

Discussion

No Comment Found

Related InterviewSolutions

PQR and XYZ are triangles. The perimeter of each triangle is 12 cm. PQR is an equilateral XY=4 cm and YZ=ZX. Both the triangles are __________A. congruentB. similar but not congruentC. similarD. Both (a) and (c )
Distance between two circles with R and r is d units. If `d^2=R^2+r^2` , then the two circles __________(intersect at one point/ do not intersect /intersect at two distinct points).
If two circles touch each otner externally, then the number of transverse common tangents is __________.
If two circles intersect at two distinct points , then the number of common tangents is __________.
There are no congruent figures which are similar. (True/False).
Identify the pairs of shapes which are similar and congruent.
Check whether given sides are the sides of right – angled triangles, using Pythagoras theorem,8, 15, 1712, 13, 1530, 40, 509, 40, 4124, 45, 51
In the figure, DA = DC and BA = BC. Are the triangles DBA and DBC congruent? Why?
State Pythagoras theorem.
The area of the trapezium is ……..