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3 years ago

Please help. quickly if possible

Mathematics

2 answers:

Mariulka [41]3 years ago

8 0

C

7x18 divided by 2 equals 63
18x22=396
63+396=459

Kay [80]3 years ago

3 0

Answer:

C 459cm2

Step-by-step explanation:

You multiply the area of the square first and add that to the area of the two right triangles.

<u>Area of the square</u> - Bh = 22(18) = 396

<u>Area of ONE right triangle</u> - 1/2bh h = 7 b = the base of the triangle

Look at the bottom of the square (18 cm) and divide that by two to get the base of the triangle

1/2(9)(7) = 31.5

<u>Area of BOTH right triangles </u>- 31.5(2) = 63

<u>Total Area</u> - Then you add 396 to 63 and you get 459 cm2, or C, which is the answer

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