Question

find the value of third angle if two angles of triangle are 45°,70°.
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Answer 1

★ Given :-

• First Angle = 45°
• Second Angle = 70°

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★ To Find :-

• Third Angle = ?

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★ Solution :-

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∓ Here, it is given that, First Angle of Triangle is 45° . Second Angle of Triangle is 70° . And, we have to find Third Angle of Triangle .

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• Now, let's solve step by step -----

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◆ As we know,

• Sum of all angles of Triangle = 180° .

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∴ According to the Question :-

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● 45° + 70° + x = 180°

➳ 115° + x = 180°

➳ x = 180° - 115°

➳ x = 65°

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★ Hence :-

• Third Angle of Triangle = 65° .

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Answer 2

Step-by-step explanation:

Question :

• Find the value of third angle if two angles of triangle are 45°, 70°.

To find :

• The value of third angle.

Solution :

Given -:

First angle = 45°

Second angle = 70°

Let third angle be x.

We know that,

Sum of all the angles of a triangle is 180°.

∴ 45° + 70° + x = 180°

⇒ 115° + x = 180°

⇒ x = 180° - 115°

⇒ x = 65°

Hence, the value of third angle = 65°.