△XYZ is constructed such that XY = 2.5 cm, XZ = 5 cm and ∠X = 65∘. Then △ABC is
an acute scalene triangle
Draw the base line XY of the length 2.5 cm.
Measure the angle X with your protractor. Make a mark at 65 degrees and draw a line from X passing through the mark.
Cut an arc of radius 5 cm on the line passing through the point X. The point where this arc cuts the line is the point Z.
Draw a line from Y to point Z, to get the required triangle XYZ, as shown below.
From the above construction, we see that the measure of ∠Y is 85∘, measure of ∠Z is 30∘ and the length of side YZ is 4.6 cm
Hence the given triangle is an acute-angled scalene triangle.
Hence option (c) is the correct one.