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Help me with this.
Calculate angles in a triangle

Help me with this. Calculate angles in a triangle-example-1

2 Answers

4 votes

Explanation:

Total Angle in a triangle is 180°

so D = 140 + 25 = 165°

D = 190° - 165° = 15°

Your answer is 15°.

User XKobalt
by
8.8k points
4 votes

Answer:

angle d =
\boxed{15}^ {\circ}

Explanation:

The angles in a triangle add up to 180°.

∴ ∠d + 25° + 140° = 180°

⇒ ∠d + 165° = 180°

⇒ ∠d = 180° - 165°

⇒ ∠d = 15°

User Cloakedninjas
by
7.6k points

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