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1 year ago

6

Calculate angles in a triangle HELP

1 answer:

ki77a [65]1 year ago

6 0

<u>Answer:</u>

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

<u>Step-by-step explanation:</u>

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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