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3 years ago

Please help soon!! will award brainliest

Mathematics

2 answers:

xz_007 [3.2K]3 years ago

7 0

Answer:

180

Step-by-step explanation:

The area of a rectangle is base times height.

The area of a triangle is base times height times one-half.

So,

The area of ECBA (what the answer is) is

ECEA + EBE

The area of DCEA is AE * DA

The area of CEB is EB * CE * 0.5

But to find EB:

AE + EB = AB. And because DC is opposite to AE, and opposite sides in a rectangle are equal, AE = 9. Similarly, CE = AD = 15

Substitute the numbers we have.

AE + EB = AB

9 + EB = 15

EB = 6

Now, let's substitute the numbers we found.

DCEA = AE * DA = 9 * 15 = 135

CBE = EB * CE * 0.5 = 6 * 15 * 0.5 = 45

The total area of these two shapes is

135 + 45 = 180

So, the answer is 180.

Natalka [10]3 years ago

3 0

Answer:

 225mm.sq

Step-by-step explanation:

here's your solution

=> area of figure ABFD = 15*15

= 225mm.sq

=> area of figure AECD = 15*9

= 135 mm.sq

=> area of figure BEC = 15*6

= 90mm.sq

=>area of figure ABCD = 90 + 135

= 225mm.sq

hope it helps

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Step-by-step explanation:

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