Answer:
25.2X + 3.4 centimeters.
Step-by-step explanation:
The formula for the perimeter of a rectangle
= 2L + 2W
= 2(L + W)
From the question:
Width of a rectangle (W) = 9.7 X - 4.7 centimeters
Length of a rectangle (L) = 2.9 X + 6.4 centimeters
Imputing it into the formula
2(L + W)
2( 9.7X - 4.7 + 2.9X + 6.4)
2 (9.7X + 2.9X - 4.7 + 6.4)
2( 12.6X + 1.7)
= 25.2X + 3.4 centimeters.
Therefore, the perimeter of the rectangle = 25.2X + 3.4 centimeters.
Use pythagorean theorem to find the bottom side of the left triangle.
12^2+b^2=15^2
144+b^2= 225
b^2= 81
b=9
you will then subtract 9 from 25 to get 16
area from the triangle on the right
A=(1/2)16*12
A= 96 in^2
then for the triangle on the right
A= (1/2)12*9
A= 54 in^2
then add the two areas together
Total Area= 150 in^2
Answer:
the answer for your question is 9 31/42
That's a wierd gift
find surace area
2 identical side rectangle
2 identical end triangle
1 bottom rectangle
area of trialge=1/2bh
aera of rectangle=legnth tiems width
2 side rectangles are 5 by 10=50
times 2 since 2 of them 50*2=100
end triangles
1/2 times 8 times 3=12
2 of them
12 times 2=24
bottom
8 by 10
80
add everybody
100+24+80=204 in^2
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this took long but i hope the answers are correct :)