Question

please answer it I will give him 30 points​

Answer 1

Answer:

X° = 70°

Step-by-step explanation:

If the two angles of are triangle are same means it is an isosceles triangle.

Since the sum of all angles of a triangle is 180°

A. T. Q

X° + X° + 40° = 180°

2X° + 40° = 180°

2X° = 180° – 40°

2X° = 140°

X° = 140°/2

X° = 70°

Answer 2

Answer:

X° = 70°

Step-by-step explanation:

Given a triangle. In the figure, it is said that two angles = X° and the third angle is 40°.

The internal angles of a triangle always add up to 180°. This is the rule of all triangles. Similarly, for a quadrilateral, internal angles add up to 360°.

There is a formula for calculating the internal angles of a polygon:  

( n − 2 ) × 180

where n=number of sides of a polygon.

In this polygon we have 3 sides. Hence,

= (3-2) × 180

= 1 × 180

= 180°

Since it is given that two angles are similar (when two angles are similar, they are represented with the same variable), we will consider it as 2(X)

2(X°) + 40° = 180°

2(X°) = 180°- 40°

2(X°) = 140°

X° = $\frac{140}{2}$

X° = 70°

The other two angles of the given triangle are 70°