Question

Construct ∆PQR with perimeter 9.5 CM and each of the base angle is 80°. Write the type of PQR

Answer 1

Answer:

construct PQR with perimeter 9.5cm and each of the base angles is 80.state the types of triangle

Answer 2

The type of ΔPQR is acute isosceles triangle.

An acute isosceles triangle has -

• At least two angles measuring angles < 90°
• Two of the sides of triangles are same.

Here, two base angles of ΔPQR is 80° each, so it is acute triangle.

The other angle of this triangle is = {180-(80+80}°

                                                        = 20°

We know, if the two angles of a triangle are same, their opposite arms will also have same length.

So, it is isosceles triangle.