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zzz [600]
3 years ago
5

Need help on this

Mathematics
1 answer:
Stolb23 [73]3 years ago
4 0
15.12m2 just finished the test
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Please help i don't know the answer to number 11
vivado [14]
The length of midpoint connected size is half of the size of the triangle that it's parallel to. that's means lengh of sizes are half of the original.

area of triangle with known side a, b, c
s = (a+b+c)/2
area = sqrt(s(s-a)(s-b)(s-c))

area of midpoint triangle wih side a/2, b/2, c/2
s' = (a/2+b/2+c/2)/2 = (a+b+c)/4 = s/4
area' = sqrt(s'(s'-a/2)(s'-b/2)(s'-c/2))
= sqrt(s/2(s/2-a/2)(s/2-b/2)(s/2-c/2))
= (1/4)sqrt(s(s-a)(s-b)(s-c)) = (1/4)area

answer is 1/4
6 0
3 years ago
Pls answer!! it’s due pls
Volgvan

Answer:

I think the answer is corresponding angles postulate because they are intersected by a transversal and are equal and are parallel lines.

4 0
3 years ago
A computer cost £900. It is on sale for 25% off. You also need to pay 6% sales tax. What is the final price of the computer?
Vesna [10]

First we have to find 25% of 900 pounds (i hope that's the right currency). so 900 x .25 = 225

so we subtract 225 from 900 and get 675 pounds.

to find sales tax we have to find 6% of 675, so 675 x .06 = 40.50

675 + 40.50 = 715.5 pounds

6 0
4 years ago
The area of the paralleogram is 184 units squared
goldenfox [79]
What do you mean by this The area of the paralleogram is 184 units squaredgive me your full question then i can help you

5 0
3 years ago
Read 2 more answers
Rearrange the quadration equation so that it is equal to 0. Then factor the equation.
Alenkasestr [34]
What is the equation?
4 0
4 years ago
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