Question

construct a triangle ABC (An isosceles obtuse triangle with equal sides 5cm)

Answer 1

we have to construct an isosceles obtuse triangle,

let 1) measure 120° angle by using a protector,

2) By using ruler draw a line segment of 5cm ,

steps:---

first

1) A line segment AB 5cm is drawn as the base,

2) Centering point A an Obtuse angle 120° is drawn,

3) from ray AX, we mark line segment AC = 5cm

4) join BC ,

ABC an isosceles Triangle is formed ,whose two sides are 5cm, ( AB, AC), and angle CAB is an obtuse angle (120°),

Answer 2

$\triangle ABC$ is the required triangle.

Step-by-step explanation:

Given,

Construct a $\triangle ABC$ (An isosceles obtuse triangle with equal sides $5\ cm$)

In isosceles triangle, two angle are equal and take it $30\ degree$ then other angle $120\ degree$

Following steps:

• Draw a line $BC=5\ cm$ using scale.
• At $B$, draw an angle $120\ degree$ using protector like $\angle XBC=120\ degree$
• Cuts point $A$ on line $BX$ like $BA=5\ cm$
• Join $AC$

Now, $\triangle ABC$ is the required triangle.