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Lady bird [3.3K]
2 years ago
15

HELP PLS PLS PLS PLS PLS PLS!

Mathematics
2 answers:
Liono4ka [1.6K]2 years ago
3 0

Answer:

angle ABC is 48⁰

Step-by-step explanation:

angle BCD will be 111⁰ it will be equal to DAB.

111+111+90=312⁰

kite is a quadrilateral so its angles add up to 360⁰

360-312=48⁰

Vaselesa [24]2 years ago
3 0
<h2>ΔABC = 48°</h2><h2>_____________________</h2>

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

ΔA = ΔC = 111° (<em>k</em><em>i</em><em>t</em><em>e</em><em> </em><em>p</em><em>r</em><em>o</em><em>p</em><em>e</em><em>r</em><em>t</em><em>y</em><em>-</em><em>o</em><em>p</em><em>p</em><em>o</em><em>s</em><em>i</em><em>t</em><em>e</em><em> </em><em>Δ</em><em> </em><em>e</em><em>q</em><em>u</em><em>a</em><em>l</em><em>)</em>

ΔD = 90° ------ ( <em>g</em><em>i</em><em>v</em><em>e</em><em>n</em><em> </em><em>)</em>

ΔA + ΔB + ΔC + ΔD = 360°

111° + ΔB + 111° + 90° = 360°

312° + ΔB = 360°

ΔB = 360° - 312°

ΔB = 48°

<h2>_____________________</h2><h2>FOLLOW ME</h2>
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