PLZ HELP ILL MARK YOU BRAINLEST ‼️a) 120°b) 50°c) 70°d) 180°

Mathematics

2 answers:

Alexus [3.1K]2 years ago

6 0

Answer:

120°

Step-by-step explanation:

Add the 2 opposite angles to find the exterior angle.

50° + 70° = 120°

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Gelneren [198K]2 years ago

6 0

<h2><u>Question :-</u></h2>

Given the triangle STU, find the exterior angle.

A. 120°

B. 50°

C. 70°

D. 180°

<h2><u>Solution :-</u></h2>

<h3><u>Given Information :-</u></h3>

Measure of ∠S = 70°
Measure of ∠T = 50°
Line SUY is a Straight Line.

Exterior angle of triangle STU = ∠TUY

<h3><u>Formula</u><u> Used :-</u></h3>

∠TUY = ∠S + ∠T (Reason :- Exterior angle = sum of the two opposite interior angles)

<h3><u>Calculation :-</u> </h3>

<em><u>Simply substituting the values of ∠S and ∠T in the formula, We get, </u></em>

⇒ ∠TUY = 70° + 50°

⇒ ∠TUY = 120°

<h2><u>Final Answer :-</u></h2>

Angle TUY (exterior angle of triangle STU) measures 120°
Since 120° is given in option A. Therefore, Option A. 120° is the correct answer.

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