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3 years ago

HELP PLS PLS PLS PLS PLS PLS!

Mathematics

2 answers:

Liono4ka [1.6K]3 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]3 years ago

3 0

Step-by-step explanation:

ΔA = ΔC = 111° (kite property-opposite Δ equal)

ΔD = 90° ------ ( given )

ΔA + ΔB + ΔC + ΔD = 360°

111° + ΔB + 111° + 90° = 360°

312° + ΔB = 360°

ΔB = 360° - 312°

ΔB = 48°

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