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alexandr1967 [171]

3 years ago

10

I NEED HELP PLS HELP ME ASAP!!! I'LL GIVE YOU 100 POINTS!

2 answers:

ryzh [129]3 years ago

6 0

Answer:

189 sq mm

Step-by-step explanation:

area = (21×18)/2 = 189 sq mm

Nina [5.8K]3 years ago

6 0

It’s 189. Half of 18 is 9 and 9 x 21 = 189.

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3 years ago

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