2 years ago

Calculate angles in a triangle HELP

Mathematics

1 answer:

ki77a [65]2 years ago

6 0

Answer:

angle a = $\boxed{154}^{\circ}$

Step-by-step explanation:

The angles in a triangle add up to 180°.

∴ ∠a + 13° + 13° = 180°

⇒ ∠a + 26° = 180°

⇒ ∠a = 180° - 26°

⇒ ∠a = 154°

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