3 years ago

Can someone help me with this please ?

Mathematics

1 answer:

katrin [286]3 years ago

4 0

Answer:

Step-by-step explanation:

∠EMC = ∠EMD + ∠DMC

∠EMC = 90

∠EMD + ∠DMC = 90

∠EMD + 20 =90

∠EMD = 90 - 20

∠EMD = 70

∠FMD + ∠DMB = 180 {Linear pair}

90 + ∠DMB = 180

∠DMB = 180 - 90

∠DMB = 90

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