Need help on this please help
2 answers:
Answer:
The measure of ∠A is 127° .
Step-by-step explanation:
The interior angles of a triangle always add up to 180°. Since you can fix <em>three</em> triangles into a pentagon, the sum of its interior of angles is 540° You could also look at how many angles there are (5), multiply that number by 180°, then subtract 360° from the product.
540° - (113° + 80° + 130° + 90°) = ∠A
540° - 413° = 127°
∠A = 127°
<em>Hope this helps, </em>
<em>~ Nicki ~</em>
Answer:
127
Step-by-step explanation:
The sum of interior angles in this rectangle is = 540
three angles are given and one of the angle is a right angle so it's 90 degrees
80 + 130 + 90 + <A + 113 = 540 add like terms
413 + <A = 540 subtract 413 from both sides
<A = 127
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