Question

Question ⭐
I have a three sided figure whose 1 st side is 90° 2nd one is 40° and 3rd one is X please solve it
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Answer 1

Answer:

Answer

Another angle is 50°

Concept required

Three sided figure refers to triangle

so, two sides of a triangle are given :

90°,40°.

We, know that sum of 3 angles of a triangle is 180°

So, let's find out X

•°•90°+40°+X° = 180°[Sum of 3 angles of a triangle is 180°]

=》130°+X° = 180°

=》X° = 180° - 130°

=》X° = 50°

•°•Hence, the 3rd side will be 50°

Answer 2

Given

• Three-sided figure.
• 1st side is 90°
• 2nd side is 40°

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To Find

• The third side.

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Solution

Three-sided figure is probably a triangle. We know that, the sum of all interior angles in a triangle is always 180°

So here, we have been given two angles and we need to find the third one. So we'll solve this equation to find the 3rd angle ⇒ 90 + 40 + x = 180

Let's solve your equation step-by-step.

90 + 40 + x = 180

Step 1: Simplify the equation.

⇒ 90 + 40 + x = 180

⇒ 130 + x = 180

Step 2: Subtract 130 from both sides of the equation.

⇒ 130 + x - 130 = 180 - 130

⇒ x = 50

Verification for the third angle.

⇒ 90° + 40° + 50° = 180°

⇒ 180° = 180°

∴LHS = RHS

∴ The third angle of the three-sided figure (triangle) is 50°

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