Which statements are true? Select all that apply. Multiple select.

A)
If a2+b2=c2, then a triangle is a right triangle, and its legs are units long and b units long, and the hypotenuse is c units long.

B)
If a+b=c holds true, then a triangle is a right triangle.

C)
If a2+b2=c2 , then a+b+c .

D)
If a triangle is a right triangle, then a2+b2=c2 holds true.

step-by-step explanation:

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so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

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step-by-step explanation:

i think the answer is a p = 78

step-by-step explanation:

there are 6 sides of a hexagon, multiply 13 x 6